Hot water pressure slow? Another cause of slow flow from hot taps
HTML-код
- Опубликовано: 20 окт 2014
- Hot water getting slower and slower from hot taps? If you live in a hard water area this could be your problem.
Not the video you were looking for? Save further searching. We have over 350 plumbing/heating videos that you really can do yourself! There is also an ask `AL tab` tab on our website. www.dereton33.com. 
Хобби
![Eminem - Tobey (feat. Big Sean & Babytron) [Official Audio]](http://i.ytimg.com/vi/9xn0OHEZZ8Q/mqdefault.jpg)
Thanks for the straightforward simple advice which allowed me to tackle my family’s low hot water pressure problem quickly and easily without the need for an expensive call out, greatly appreciated 🛠👍🏻😀
Very welcome!
You sir are pure genius. Thank you for saving me a service call. I was able to clear out a clog from the hot water output side of my hot water heater thanks to this video.
No problem.
This guy is good!!! Thank you! You've helped me to get rid of my airlock!!
No problem Vanessa.
Thanks for this video!! Our hot water heater was definitely plugged. Save a ton of money cleaning it out ourselves and now we have great hot water pressure!
I geeeeeywgwwwgww
Spot on, absolutely correct! Saved me from having to replace my water heater. Thank you, thank you, thank you.
No problem Sam.
How on earth have so many people "Disliked" this video? Idiots and Trolls. You have helped me solve a massive Plumbing issue. Thank you so much.
A lot of Trolls just deliberately put up dislikes without even watching the video. Also lots of plumbers dislike me because of the work they are loosing, people are fixing there own plumbing.
Agree with below: I recon the online fixes take work from other plumbers. Sour grapes.
Thanks for taking your time making these videos. Very helpful.and clear. ..love all your videos
Thanks Malcolm.
Thank you so much this was the problem with mine I checked after your advice absolutely spot on your videos are brilliant TOP RUclipsR 👊
No problem mate.
Spot on as always, brother. Appreciate the videos. Please keep them coming 👊
Thanks! Will do!
Honestly never thought of this, was about to give up and hire someone to fix it but I gave it one last try looked on here found this video and that's exactly what it was was blown away. I have a oil burning hot water furnace and it has the same issue thanks for the video!
Kameron Marrero No problem Kameron, pleased you sorted it OK. Al.
This fixed my hot water low flow issue, here in Florida, where we have hard water due to all the limerock. I have flexible pipes connected to the hot water heater (boiler) and the output one had less than 1/16th of an inch (about 2mm) of an opening. The sediment was literally rock hard and I tried to drill it out using a masonry bit but couldn't clear it completely so ended up replacing the pipe. What a difference it made so many thanks for the useful information.
No problem
@Gourockian1 When you say "ended up replacing the pipe", do you mean all of your hot water piping in the house, or just the flexible pipe on the hot water side of the heater? Thanks!
@@eliteangler Just the flexible hot water one.
@@Gourockian1 Thank you!
Great video Im guessing this can have the same effect if your cold suppy is from the main, tanks on the same level as the tap so pressures gonna be rubbish anyway but this might help a bit.
Well done, thanks, Mike
No problem.
Great tip
Great video thanks
Very useful thanks
Thanks for the video, it does work when I released the pressure valve, water is running fast however it last only a day then slow again? how do I fix it?
The last couple of weeks I’ve noticed our hot water pressure has gone quite low. However, we have a combi boiler and do not live in a hard water area. During the winter I have to deliberately run the tap half full, so as to heat the water enough through the combi to get the water hot for a bath. However, it now runs at half the rate, even with the tap turned fully on.
Faulty 3 way valve, or the water pressure is low .
Very helpful video. Thanks.
Thank you!
No problem R P.
Thanks, Verry Helpful
You're welcome!
I read somewhere that i should cap off the faucets then with the hot water tank off and draining threw a hose.. Flush lines with cold water by opening both the hot and cold on the faucet that i blocked.. This makes more sense to me. Thanks
No problem.
Thank you good sir!! problem solved!
No problem Steve.
champion! thanks mate
No problem.
Great information. Could this be a problem with indirect cylinders also not just immersion heated cylinders? Mine is an indirect cylinder in a bungalow. Always thought there was no hope until I viewed your video.
GhostOfCountNumber Yes it is the same for indirect cylinders. Al.
My city blew a main a few months ago...water was out for a week. When it came back on my whole 2nd floor lost most hot water pressure but bottom floor is fine.
It happens.
I live in a flat and have one of those immersion heater/ boiler/ economy 7 things... and all of a sudden I've noticed reduced pressure from the hot tap in the bathroom and kitchen AND power shower??? The latter motor is straining when I use it. Could this be the issue? Thanks
If you live in hard water area, then yes.
Hi, you are spot-on there at two minutes. I had exactly the same problem. However it was about the TEE feeding out and away to some 15 mm pipe. Some scale and black in colour, was removed. If some broke off earlier I suspect it's travelled further down through some bends into downstairs kitchen where the water flow is poor.
So what if you are improving your home do you replace all the pipes in the hot feeds?
Now how to dissolve the stuck scale, could you use say radiators cleaner or so mild acid and leave it to soak somehow ? Rig up some container and fill said restricted hot water pipe and drain into bucket having removed from taps and then seal off for 12 hours.
Best just to renew the pipes, the only thing that can get rid of stuck limescale is Acid.
You will find it is just the pipes near the cylinder that will be contaminated so no need to renew all the hot feed.
A vertical vent can cause a phenomenon called one pipe circulation and cool the cylinder. There should be 457mm of horizontal pipe before a vent and supply
Never heard of that in 50 years of plumbing. A load of cobblers.
@dereton33 That's what the plumbing instructor thought us anyway... I wonder about the validity of it myself. Love your videos and thanks for your willingness to inform us
@dereton33 Just looked it up in Plumbing by R.D Treloar and it's in the book proved with physics. My father is a plumber of 57 years agreed that it was common practice here in Ireland. I have learned something new. Appreciate your valuable knowledge 🙏
Thanks Dad
Dad !!"!"!!!
Pip pip cheerio good video mate
Thanks.
Very clear explanation. If it is neither the tap or the furring up would a water pump to the hot tank increase flow?
It would but it would have to be fitted to the hot outlet pipe from the cylinder.
@@dereton33 great. Will let you know if that solves our problem.
I removed mine and still the hot taps are slow. Well they start off good and gradually slow down. Could it be a Gate valve next to the Tank in the Loft?
Worth checking. But sounds like you still have some scale in the pipe work somewhere near the tank.
happy easter sir
You too.
Hey sir, never say never! On my side of the pond both the hot and cold pipes are at the top of the tanks!
What you have said about the blockage makes sense. I will have to do something about that. Although with the emergency pressure relief valve I should not have a bomb in an over pressurized tank!
Cheers!
The
Hi, I have a bathroom and a wetbar in my basement. I have no hot water pressure coming from the faucet in the bathroom or the bar sink. I do however have hot water pressure from the sink in my laundry room in the basement and from the sinks on the first floor of my home. The only conclusion I can come to is that I may have a clog in a line in my basement. What do you think?
I would check the taps to make sure they are fully turning on first then go for a blockage in the line.
hi. i had plumbers in the flat for years. Always same issue with the hot water low pressure. I've gone through two pumps. no one highlighted this issue. when unscrewing the top do I shut valve off & hot water , or can I find this in the manufacturer's manual ? live in the SE london and water is very hard... destroying shower components ect ..
Should be a gate valve next to the cylinder. Once turned off there should be no water from the hot taps.
Before I undo the pipe, do I need to turn anything off beforehand? If I just remove it, will it be safe etc ?
Yes you will need to turn off the cold feed to the cylinder. There should be a red handled gate valve by the side or above the tank.
Bath, bathroom sink and kitchen sink are very low pressure.
We had this few years ago and was sorted by removing and air lock.
We don't have hard water in our area, but the system is 30 years old (large cold water tank over an immersion heater, economy 7 setup)
So could this be the problem even in a soft water area?
Not normally no. Only hard water.
Hi, I am not very knowledgeable in regards to where the hot water on and off switches are in my home. I had shut off my main water switch because I was trying to repair my dryer. I also had to shut off the hot water, under the sink, because I was experiencing a leak with one of the faucets that went to my washing machine (I have a stackable washer and dryer). I had turned many valves, even on the hot water heater, because of this problem. I eventually had to have a plumber come in and repair the leak. However, after I turned all the faucets back on (at least I think I did this) my shower is not supplying hot water like it used to. I have to put the dial all the way to the hot side and i can tell that it is just the hot water now. It comes out with very little pressure and when I go to get some cold the pressure is stronger, but it gets very cold. It was not doing this before. I think it might be because of all the things I turned or didn't turn. I need someone to go over all this with me. I had turned something that said, "cold water" off on my electric heater, but I'm sure I corrected that when the plumber left. I turned the one under the sink back on. I turned it more this morning, thinking that might be the cause of all this. I will see how it goes. I can't figure out what I did wrong to create this!!!
Make sure every tap you turned off is all the way back on as far as you can turn them, especially any hot ones, then go back to the main stopcock under the sink and turn it off, open your cold sink tap and turn the stopcock just a half or quarter turns so that as it comes out of the sink tap, it is not too fast but fast enough.
Sheila meri A
My upstairs hot taps are very slow, but downstairs are ok. I have checked the outlet from storage tank and inlet and outlet on the cylinder and all appear to be clear. Cylinder was replaced 2 years ago, but didnt improve things. My hot water pipe from cylinder goes up to the loft floor before dropping down into the upstairs bathroom and then downstairs. System worked fine when I moved in (1980') but has got worse in the last few years. A plumber suggested a pumped H/W system, but couldnt guarantee it would cure the problem. Any thoughts?
That feed pipe going into the loft is the problem, is there anyway it could be re routed into the bathroom?
@@dereton33 Thanks for the reply. Pipe could be rerouted under bedroom/ landing floor, but loathe to start lifting floorboards. I had thought of making a temporary flexi plastic hose from cylinder to bathroom to test it. Thanks for your thoughts anyway. Shame you dont live next door.
Thnku so much for ur stright point advice i just got that issue in neighbour house can u give some advice should we leave that tank as is it just remove pipe and clean it make it running or we cant clean just need to change hot water tank
Leave the tank just remove the pipe and clean.
So we have this issue and our top pipe turns 90 degrees and connects to a pipe at the back. How do I go about even getting to clear the blockage? I've undone the pipe but it will not budge at all.
Some times you have to cut the pipe out and put a new piece in.
I have the opposite of slow flow in hot water line. I have a increased pressure issue. Can hear the bathtubs faucet start to make noise. Go in and open hot water valve and it spits out with great force at first. It never does that when I open the cold. Only the hot water line. Can't figure out why there is so much pressure in it.
If the water is really hot when it does that, then you may have a broken tank stat that is not keeping the temperature at the right setting usually 60 c. Boiling hot water can be dangerous.
Hello, I have a tankless water heater. works great except to my kitchen sink low pressure out of the hot tap. long long time to get hot water. I have a single handle faucet tried a few things last was to switch the cold and and hot water lines to see if it was the hardware. Now I have the same problem just reversed lol. hope you can help
Check for any ball-afix valves or stopcocks on the feed that are partially shut, other than that you have a blockage in the feed pipe.
I've got a combi boiler no separate water tank and have this problem. Where would I need to look? Thanks Derek.
You will need an engineer to look at combis, you need a gas certificate just to take the front cover off.
could this affect the hot water pressure in my bath all my other taps are running normal
Not if all your other taps are running fine.
Hello
Are you saying the whole cylinder needs to come out? If that's the case you are saying a professional person such as a plumber is required? It seems that's the platform l am having because the water is not circulating through all the radiators in the house and there is low water pressure from the tap in the taps upstairs. If l have to get a plumber to carry of the repairs how much do you think it would cost on average?
You response will be appreciated.
No the whole cylinder does not need to come out. If you have a blockage it would only be in the bit of pipe coming out of the top of the cylinder. if you are having trouble with rads not circulating that is a different problem. Check your pump, have you balanced your heating system? Have you had the heating system cleaned? You may have low pressure upstairs because you are tank fed.
Hi I have low pressure from my hot water tap in the kitchen am on a gas boiler any ideas thanks for sharing all your brilliant videos
If it is hust the kitchen tap and all the others are ok then it is a faulty tap.
Sorry typo should say just.
Great Vid Big Boy, I would not have thought to look for a blockage there, good info, cheers..
Do I have to drain the emersion tank before attempting to clean the blockage?
No just shut off the gate valve and open the hot tap the water will level off across the op of the cylinder
Do you have a demo of a fix?
No sorry.
Hi I have a combination tank in my flat and the hot water pressure is very slow in the kitchen but a bit better in the bathroom what Cani do to help it
A pump is the only answer as you do not have a head of pressure.
Thanks for all your videos, they’re a great resource! I watched this video as I have low hot water pressure. However my cylinder is an indirect type only heating the water when our oil boiler is running. It has no immersion. As I have no element do you have any advice on why all hot taps are slow? I have just changed bathroom taps if that makes any difference. Thanks in advance 🙏
It will be the bathroom taps they do not like low pressure systems Like F and E . The tank will be fine.
@@dereton33 thanks for that. think well just install a pump in the hot press. we can replace our electric shower then aswell and have one of those rain shower heads!!
Is it safe to unscrew this and how do it stop water coming out of the tank..it's in my daughter's cupboard upstairs in our house
You must turn off the water first. Only take this job on if you are confident in what you are doing.
Do you have to close off water anywhere before taking off
Cold feed to the cylinder. Or turn off main stopcock and open hot taps.
i have an on going hot water issue in our house for the longest time i couldn't work it out.So i started looking so far up the pipe hot water and then stops so was looking around with my megnetic light and noticed it was sticking to the copper pipe,turns out i have a blockage going the full length of my hotwater system.
It happens. Good luck with it.
Hi do I need to drain the tank to remove the limescale blockage from we're your saying it is as I have this problem
Just a small amount.
@dereton33 the pipe on top going into the tank feels hot have you got a video how to drain and isolate the water please 🙏
What do I need to do before removing to check?
Turn off gate valve by the side of the tank, or in the loft, then open the hot taps until they stop running. Safe to disconnect the expansion pipe then.
Hi there, love the videos. I have this exact problem, low hot water pressure from all taps. Where I live is classed as a `slightly hard water` area, is this likely to be my problem? I have an economy 7 immersion heater which is probably over 20 years old, is it straight forward to unscrew the hot water exit pipe at the top to check for a blockage, I would not want to unscrew and damage something and be left with a leak, or is it a simple job for a DIYer like me, thanks.
Hi Baz, well worth a look, those tanks with immersion heaters always furr up. Just shut the valve off on the cold feed, a red handled gate valve, open the hot taps until the water stops then remove the pipe.
If its blocked can you just clear it out will it be OK after that.
Yes that is fine
Recently my hot water taps started running slowly until it stops. At first I thought it was an airlock and I followed the steps in one of your other videos. That did not work so I called a plumber. My house is really old and the plumber told me it is rust in the pipes and I will have to get all the pipes replaced. This is the pipes in the walls.This does not make sense. If it's rust in the pipes inthe walls then surely hot water should run form at least one of the taps because the pipes split in the roof to go to the bathroom and kitchen. When I open a tap the water runs for a bit and then slows down and then stops completely. This seems to be the only explanation for the problem I am having.
If you live in a hard water area, then I would certainly check the pipe above the cylinder first.
My hot water feed was fine and then an 'engineer' came and drained the system and when it was turned back on just a trickle from the hot tap cold feed is fine can you help?
You have an airlock.
How do I clean the pipe? Is there a video on how to do it?
No there is not. Best to renew the pipework effected.
I have a rinnai water heater. I have cleaned the filter. But, my hot water pressure is very low. The water is very hot but has no pressure.
Sorry I have no experience of those heaters.
Hello there, just a bit of advice please, I'm looking to fit a pump on a gravity fed system that's an electric emersion tank, and a tank for a Y system boiler, is it still OK to go down the line of fitting a pump and also a S flange?
Many thanks
Ryan
Go for it!
@@dereton33 cheers, I'm also having a go at changing the emersion heating element while I'm at it, it's kbeen knackered for a while, in for a penny and all that. Your RUclips vids are a big help, cheers and take care.
Hi is it safe to blank redundant coil in the cylinder back boiler no longer in use? Thanks Phil
Yes, it is
Hi, great video. I've a blockage somewhere. I unscrewed the hot water pipe at the wall and turned the cold water tap back on and the water ran freely from the hot pipe. So there must be a blockage in the hot pipe IN the wall (it's not accessible) Any idea how I can sort it? Thanks a million!
See if you can blast some mains pressure water through the pipe that is in the wall to clear it. Otherwise a pressure wash may be the best bet.
dereton33 That was a quick reply! I connected the cold tap directly to the hot tap, bypassing the tank altogether, and turned on the cold tap. Still nothing coming from the hot taps in the rest of the house so that's the problem nailed. Plummer time I think. Thanks very much!
dereton33 A quick update: I filled the pipes with vinegar and left it for a few hours... Sorted:)
How do u clean the bit thats blocked please as new to it .cheers council kev uk
Hammer and screwdriver.
Hi deret, can you help us?
We have the same problem here in our house, we called a gas engineer and he explained its because our hot water tank is located on the bottom floor (we have 2 floors) the bathroom is at the bottom, he said tanks are usually on the second floor so water pressure is good
we have combi boiler too, recently installed.
If you have a combi then your cylinder is de-commissioned.
thats great .. but are you not going to show us how to fix the problem?.. i'd luv to know
Just clean the pipe out of scale that is blocking it, or replace that small section of pipe.
If you have to ask how to go about doing it, you probably shouldn't be attempting it. Don't want to be rude, but he does explain what to do in the video.
Thanks for video, Is it easy to change the pipe valve on top of the cylinder. suddenly there is no pressure in my shower.
+Shahid Zaidi Yes it is quite easy.
Thank you!
Hi there, so sorry to bother you. I hope all is well. I've been searching and searching ...
I'm hoping you would be able to help us please.
We have a 5 year old combi boiler, the hot water pressure is not what it used to be and is lower at all faucets.
We have been experiencing this for a couple of months now.
Cold water is near 10 L/Min and hot is almost 6 L/Min.
The pressure drops quickly and then it remains constant.
The boiler was serviced very recently and the supply pipe along with an old metal pipe in the property were also updated. All of the above was done to improve the situation but unfortunately it's still the same and I'm not sure what else could be done.
I would really appreciate it if you could give us any advice please 🙏.
Kind regards
Check you have good pressure from the cold tap on the sink. If not check that the main stopcock is fully on. Then check for any isolation valves feeding the mains to the boiler, if there is remove it and fit a coupling. If you still have a problem then the 3 way valve in the boiler could be at fault not switching full on when hot water is called for.
Mine has pressure at the beginning of a shower and then dies off to a trickle ,if I turn the hot tap off for 10 minuets it builds up a bit more pressure but dies off again after about 30 seconds .
Sounds like scale as per the video.
Do you have to empty the hot water system before you open this?
Yes. Unless you have a gate valve to turn off the hot water by the tank.
Great video, my hot water trickles out of all my hot taps. Can you explain why my radiators don't get hot in the middle. I have 8 in the house, only 3 work properly. No one can find the problem as to why? Any help greatly appreciated
The rads will be blocked with black sludge, or hot spots as we call them.
@@dereton33 apparently they have been flushed and bleed by professional and still don't work. One radiator doesn't work at all and no one knows why.
Hi I have this problem of really bad water pressure to hot taps I'm in a bungalow just wondering before I try this remedy do I have to turn off any water going to the cylinder??
Yes turn the cold feed off, should be 22 mm gate valve.
I’ve had a new sink and tap in the bathroom the hot supply is slower than with the old tap and sink
You ned low pressure taps. The restriction is too much on the normal tap.
Hi, thanks for this very useful information. How though do I remove the fitting from the tank? i.e what do i have to turn off to undo the fitting? Do I have to empty the tank? Thank yo for any advice you can offer.
Turn off the gate valve by the side of the tank. Check the hot water is off by running a tap. Drain a small amount of water out of the tank using the drain valve then undo the fitting on top of the tank. Undo a fitting above on the same pipe or saw through and use a coupling to reconnect. Clear pipe .
Thanks very much for your quick reply, how would you suggest removing the limescale? Sorry to be a pest.
Hi There,
I am struggling to undo mine as it is very tight and I guess the lime scale has gone im between the pipe and the connector, also, someone painted the pipe which makes it harder. Any tips? Please give me your email so i can send you a photo?
It`s alanawall@aol.com.
I turned off the cold feed to the immersion tank via the gate valve to change bathroom taps and turned the valve back on once complete, now I have no water (hot or cold) from any of the hot taps in the house. My suspicion is the gate valve has failed and cannot fill the immersion tank. Is there anyway to test this theory, maybe draining down the tank and see if the roof thank fills up?
I know the ball valve in the tank is ok as I can hear it filling when using the gravity fed cold water taps and have used the airlock method to see if that was the problem to no avail. Any ideas?
If you have no cold water from the bathroom taps then the gate valve is broken and will need replacing, if you have no cold or hot water then it is an airlock, or the roof tank valve is not filling.
dereton33 Thanks for the reply. The 22mm gate valve I closed only feeds the hot water tank, the cold to the taps/shower is fed from a separate 15mm hence why I can hear the roof tank filling when I run these. I'll try draining the cylinder and see if it refills but I'm thinking the gate valve has failed in the closed position.
Save your time and just renew the gate valve. If you still have a problem at least you can eliminate that.
Would be nice to get a solution for this issue! Thanks
Don't use tap water.
Agree. Maybe a water softner fitted inline. Other than than routine maintenance seems to be the only alternative to descale the pipe
Old school aye
Yes.
Just moved into the house and I have a poor hot water flow to all of the tap outlets. The hot water cylinder does not have a immersion heater fitter. Could we still have this blockage occur without the immersion heater installed?. Our area is very hard water, the kettle is covered in limescale within a week of descaling. Thanks
Worth checking but not normally it takes an immersion heater to cause it normally.
@@dereton33 thanks for the quick reply. 👍
Thanks for the video, but how to fix it please?
Remove the pipe above the cylinder as shown and clear out the limescale.
Hi. Recently ran a bath. The water contained a lot of dust and debris that appeared to come from the hot tap. The pressure from the tap has dropped considerably since then. Any ideas what is might be?
Cheers
Hi Mike if you have a combi boiler, it will be the tap faulty, if you have an F and E system, then it could either be an airlock or the hot tank scaled up on the outlet as on this video.
More than likely an airlock.
Hi
Can you please help, I got a combination hot water tank and very low hot water pressure on all taps.please help
Thanks
The only way with those, is to use a pump.
Hi I had my Main Combi 30 HE boiler replaced with a new Valiant ecoTec Pro 30kw combi boiler 2 days ago. Later that day when I had a shower I noticed that the water flow rate wasn't as strong/fast as it was before. It is affecting all the taps in our house. Do you know why this could potentially be. I know you can't give me an exact cause as you haven't seen the boiler/ch system but could you tell me what you think it might potentially be? Thank you very much in advance.
Try the main stopcock and check it is fully turned on. Other than that this new combi may have a slower flow rate.
@@dereton33 My radiator just started leaking just now out of the blue and thier was hot water spraying all over the floor and the floor was drenched in water. As soon as I heard the strange noise coming from the radiator I got up and turned the stoptap off and put some sheets on the floor. The amount of water coming out of the radiator slowed down once I turned the stoptap off and after around 10 minutes thier was no water coming out of the radiator at all. I was wondering if I turned the valve setting to 0 on that radiator and then I turn the stoptap on again and re pressurise the boiler could I still have a hot shower and would the radiator not leak then because I would of turned the setting of the radiator to 0 by the thermostatic valve on that radiator meaning no hot water can enter the radiator. Would the radiator still leak then if i was to turn the water back on from the stoptap. Many thanks if you could reply.
im getting this problem but i dont have a tank i dont think i got ideal logic boiler the taps run strait from that im sure what could that be
I would need a lot more detail .
mate thanks for getting back time but i realised what it was i forgot i had turnt the tap on in the garden to top the pond up and forgot about it
Hi mate, i had a problem on my bathroom hot water tap for some reason stop working propely , only when i turn to hot water, ( the bathroom tap ahs been change and also the valve under the sink has been changed) the kicthen tap work perfect on both hot and cold, i live in a 1 bedroom flat and i have a small boiler room, please can you help me with some advice
Many thanks
Check the mixer tap valve is opening fully on the hot side.
@@dereton33
The tap is new and is with liver function, even the old one had the same issue
Hello. Please can you help me. I've had a new combi boiler (in our bathroom.) On completion I noticed a slow 'hot' tap in the kitchen (downstairs) also the hot tap only releases cold water. The hot taps and shower upstairs are fine pressure wise and in releasing hot water. When I asked the engineer he said it was because I needed a new tap as it was leaking? (By this point he was in a rush to go home.) Which makes no sense as it was working fine previously. What do you think is the problem? Please help.
It's in our bedroom*
It could be that tap is not fully opening enough to allow the boiler to fire up.
@@dereton33 Thanks for your reply! How do you suggest I go about rectifying this please? A new tap? Merry Christmas!
What about gas water heaters? could it happen the same way?
Yes it could.
Interesting drawing, a vent doesn't just rise from the tank like that, if you plumb a tank in like that you'll be chucking money down the drain, hot water rises on gravity so as you heat the tank up you'll be loosing temperature of the water inside the tank because it will keep rising, hence the 450mm before the first tee to the vent, so please don't plumb up a tank like this
The drawing was a rough sketch not meant to pull in details like that.
Hi, thanks for the video.
I'm trying to fix my mum's hot water pressure as it''s really bad. Think is she has a Gas boiler, I know that with the Gas boiler the hot water comes out the bottom instead. I am just wondering if I can do the same thing or even better if there's a way to clean the whole boiler with a limescale remover liquid?
Thanks in advance.
I take it you mean a combi boiler. The hot water heat exchanger can not be cleaned by lime scale removers.
Yeah that's right, is there any solution then? Thanks for the reply
You can remove the plate heat xchanger and treat it with a substance that eats scale, depnding how old the boiler is, a new one is quite dear, ( plate xchanger ) and only a trained person should do it, so labour costs also, wiegh it up against a new boiler, you should get so many litres per minute at a certain temperature at the taps, this can be measured with a wier cup, and checked in the boiler manuel, or try turning the mains inlet down a bit to let the boiler have a chance to heat the water if you mains pressure is high, good luck
Thank you
I got new cylinder, but still low h/w pressure on all taps 😢
Check the expansion pipe is not blocked.
I shut the main for about two hours, went for parts, came back to work on my sprinkler valve, did repairs and after turned main back on. On the following day, there was HOT LOW WATER PRESSURE THROUGH OUT THE HOUSE (hot tab always pressure perfect). What happened?
+Montery12 I suspect a blockage into the stopcock or water filter.
+dereton33 thank you
We used to have the best water pressure. Although the hot water would not last long. We replaced the hot water tank and the hot water pressure throughout the entire house is now awful. Cold water pressure is great. Hot, when you turn the water on, in any faucet starts strong and then decreases significantly. Help!! Why is this happening?
A valve not open fully or faulty. An airlock or bad plumbing to the cylinder
My hot water comes out slow now and the tap and boiler pipes start rattling.
Check out the expansion pipe as in the video.
I'd like to know why my mains water tap runs from cold to hot to cold again happens all the time and not only to me is this a scam to make us pay higher bills???
A long way from the combi boiler or cylinder.
I have a question for you. I have an issue with only my kitchen faucet. There are air chamber tubes on each shut off valve under the kitchen sink. Also a brand new hot water tank I installed which is directly under the kitchen. There are obviously 2 pipes going to the kitchen sink, both pipes are roughly 10 ft long from the tank to the kitchen faucet. So my issue, so I thought was the diverter in the faucet. So to rule this out, I removed the cold water supply hose and pointed it in a bucket, water came out smooth. So I took the hot water supply hose, disconnected it from the faucet and put it in the bucket and turned the valve on, the water is spitting and spraying then goes to a thin stream when I turn the water up full blast. So my guess is whoever sweated the valves on possibly over heated the hot water shut off valve and destroyed the rubber seal inside the shut off valve. I cant think what else it could be. Does this sound right to you before I go and cut off the valve and replace it? I like to add none of the other faucets in the house does this.
It is more likely to be the tap, it has probably unscrewed on the left hand thread inside the tap. Here is the link to do it. ruclips.net/video/MqOi1S_ophI/видео.html
It cant be the faucet. I originally thought it was as well. I disconnected both water supply hoses from the kitchen faucet. The cold water supply hose runs fine on low, med, and high when holding the hose in a bucket under the sink. Then when I take the hot water supply hose of the faucet and turn the valve on, the water sprays, splatters, and when I turn the valve open all the way, the water turns into a pencil line stream of water. It has to be the valve cuz its happening while the supply hoses are disconnected from the faucet. It only does it on the hot water side,. I can see these valves were recently replaced. Not to mention whoever replaced the valves used cheap plastic handle valve which I cracked the handle in half when turning the water off.
I'd like to ad, I truly admire you. I love your videos. You are very knowledgeable. Please dont be offended by me not agreeing. I just went and watched the link you sent me. THat's not the issue. The faucet is 4 months old. The knobs turn freely with no problem. I removed both supply hoses from the faucet side. I left the supply hoses connect to the shut off valves. Cold water is fine. The hot water side is where the issue is. I can literally feel the hose in my hand vibrating and spitter and sputtering. To rule out it wasnt a bad supply hose. I took the cold water supply hose from the valve. Then I removed the hot water supply hose from the hot water valve and put the cold water supply hose on and it still makes all of the sputtering and spitting/ hissing sound. So this tells me it's not the supply hose, its not the faucet, that just leaves the valve. I can tell the copper work under there is fairly new. Ive had the house for a year. I ddn't do the plumbing work under the sink. However I replaced the faucet because the old faucet was doing the same thing. New faucet, same problem.
Also I'd like to add it's a mixer tap. One handle to turn on the water, push to the left for hot or move the arm to the right for cold water.
Ah right, in that case try renewing the valve first.