Easy Step by Step Guide to Convert Single Drain Pipe into Double Sink
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- Опубликовано: 2 окт 2024
- Are you wanting to install a double sink, but only have a single 1 1/4 inch drain pipe coming out of the wall? You could rip the drywall apart and create two drain pipes coming out of the wall for your two things, or you could use this trick using reducer washers.
Great job! This is exactly what I was looking for! Thank you for sharing the solution. And who cares about code! Seriously! Just because there are reasons why you "shouldn't" doesn't mean 1. you can't, or 2. it won't work. It's just water people! It flows! Not everyone can afford a plumber or has the time to wreck out their walls to "do it right". My house built in the 70's is DEFINITELY not up to current codes, and yet, I take showers, flush the toilets and have sinks that drain just fine. And guess what? I now have 2 sinks that work just fine where I previously had 1. Thanks to this guy! :D
Glad it helped, love your comment. 🙂
Don’t do this
Can you provide a “shopping list” for the fittings you put on the supply valves and the reducing washers used?
I went to Home Depot and literally sat on the floor and built what I needed to make sure everything fit correctly. I don't have a detailed shopping list and yours will probably be different. Good luck!
OMG! This is the worst job I have ever seen. In my State the inspector would laugh and slam the doors shut. This is a how to not to how to instructional video!
Nice idea but I guarantee you if you got this inspected it would fail.
Thanks, I had no idea it wouldn't pass inspection. Guess that's why I never found that solution online. 🙂
@@OTeamFamilyAdventures It’s the “T” connection. You should install “Double Wye” connection with a clean out access. You should be good then.
@@ds1755 thanks!
In Canada, that T is a building code fail. You must use two wyes "Y"
It's likely a fail here in the US as well, when I sell the house a licensed plumber or inspector will probably catch it. :-)
Laying a tee on its side for drain usage is automatic fail that is across America. Only time you can lay a tee on side is for venting. Those slinky drains are also bad.
You’re saying you can’t lay a tee flat?
@@danbeasley910exactly. I have one in my home now and it’s a huge issue. The water will run from one vanity and into the other. It also makes it more susceptible to clogging. DO NOT DO WHATS IN THIS VIDEO.
Thanks for all the comments, I have a lot to learn that's for sure. My drain set up still seems to be working fine, but what options do I have if I don't want to install another drain pipe in the wall to the second sink?
@@OTeamFamilyAdventures instead of using a tee, use a y pipe. It will prevent the water from going into the other side and is less likely to clog. Also be aware of the venting system for your plumbing. If you have more than just the vanity on your system, you may need to either increase your venting pipe size, or somehow install an air admittance valve. For future reference, tees are usually only used in venting pipes.
@@backcountrybushcraft Cool, thank you. Plumbing never goes as planned for me, I might leave it in place for now until I experience an issue, but I really appreciate the input and feedback.
Do they make a dual drain 1 1/4 kit for bathroom sinks.I cant find anything online.?
Not that I could find.
It's going to clog up over time. Guaranteed
Why?
@@OTeamFamilyAdventures I have converted single bath lavatory sink into duo, and its better to use single trap, with the Tee in vertical position directly above it. And even better to transition from 1 -1/4 to 1 - 1/2 right after the sink trailpiece
@@yehmustafa2959 hmm, ok maybe I'll try that if I have problems with this set up later, thanks for the tip!
Thanks for the detailed size and explanation and keeping it short, simple, and direct to the point. What size are the water lines?
Thanks for the feedback, not sure on the water line size.
You could hand go all the way with 1.5 and use trap adapter 1.5 to 1.25
Thanks... don't think I saw a trap adapter on Amazon or at Home Depot though.
Pretty sure you needed a y and a studor valve in that drain plumbing.
Why? Still working fine, what would the studor value help with?
@OTeamFamilyAdventures it helps with venting the drain when both sinks might be running at the same time. Its a code thing. But sometimes people never have a problem without one. The Y helps avoid drain water going up the other sides pipe. Also, if you get a clog downstream from the T, good luck getting it cleared because no snake or other clearing method is going to make that angle. Something else a Y would solve: You take that T apart to clear a pipe and you're going to have a bigger mess on your hands. Much less mess with a verticle Y joint and you most likely wouldn't have to take it apart. Not a criticism, just info to consider.
@@ActinOut much appreciated 👍👍
How did you put two water source connectors off one source?
The video should explain it all in detail, let me know if you have other questions.
The brass fittings on both the cold/hot side, each have 2 ports; one of those lines from each side will go into the left sink, and the other will go to the right sink. Simple :)
Please don't follow this method. The tee is supposed to be vertical. He switched pipe size from 1 1/4 to 1 1/2 and back 1 1/4, you shouldn't drain from bigger to smaller. Those accordion style p-traps are pretty much not code everywhere. Those ridges slow the flow of water and catch everything, they build up with grime and bacteria. 1 1/4 pipe is undersized for 2 vanities. You have the risk of siphoning the p-traps and allowing sewer gases into the home.
Look it probably works, for the time being. But you're just pushing the problem down the road. If anything ask on forums for opinions. Usually there are semi-retired plumbers that can provide better guidance. Just take some photos and ask.
Great work
did exactly the same
Do you get water build-up in the basin sometimes?
A couple times I've had backups, but I was able to get it out by plunging
@OTeamFamilyAdventures thanks, I think it's one of the drawbacks of using single pipe for double vanity
Due to charging
Any issue yet? It’s been over a year yea?
Nope, not a single issue yet. 🤞
Very nice thanks for sharing!
they could monitor these video's, its wrong and shouldn't be done that way
That could not be more code incorrect. Real example of how not to do it
Is there a way to do it compliant to code without having to open up the drywall to add a second drain line?
Nice dude
This is perfect.
What did you use for as a splitter for the hot and cold water line
@@M39tuck if you pause the video that a couple different points in the very beginning, you can just barely make out the fittings for the water lines. I just used simple t-line splitters I found at the hardware store. Good luck!
Is there a reason the P-traps are so low? It takes up all the space under the cabinet. 😬 My drain pipe is 2” and just as low. Do you think it’s possible to ‘T’ upward instead of straight out? Or am I being ridiculous? Thanks.
I would have to Google or ask a plumber, definitely good questions though. :-)