Thanks Keith! You know how busy I've been but I have not forgotten about your review for the plumbing exam where you are. I'm working on some review material for our next Zoom.
Indeed, thank you. There is a huge lack in plumbing education representation, in comparison to the other trades. Which I just don't understand. Every city, or town I've looked, they need plumbers.
Have you given any thought of making a wet venting videos, have some different scenarios/configurations and how to calculate the DFU's on the branches?
I was wondering about something, Can you have too many vents? If the idea was to keep the atmospheric pressure close to equal or within 1" W.C., is ok to have say 12.56 in drain and something crazy like 25 in vent?
Great question! If I'm to understand the example, if my building sewer is 4" (12.56 square inches) would it be okay to have a total vent cross sectional area of 25 square inches? The idea is to equalize atmospheric pressure, and more vents added only helps to ensure that.
I was under the impression that the circuit vent had to be between toilet 7 & 8 , not behind toilet #8, or rather before the last trap? was it because you started your sketch, then changed your mind? (i'm look at 48:11)
You are correct. The circuit vent is to be between the two most upstream fixtures and the relief vent just past the most downstream fixture if tied into a stack.
In order to look up the information on exhausts, you should look in Chapter 5- Water Heaters. It is primarily codes on combustion air and the exhaust requirements of gas appliances. Check there and please get back to me if you need further information.
Yes. I drew it incorrectly, and it is at 36:10. If you look at my short video on island venting, you will see a better explanation of this. Apologies for the error.
I have a dual vanity above a kitchen sink. My vent for the dual vanity only rises about 4" above the F.L.P. then goes horizontal about 5-6 feet then goes vertical. In the middle of the horizontal run the kitchen vent joins in. The vent pipe is 1.5" until it enters the attic, from there it keeps increasing in size as more it is joined by more vent pipes. I was told that I have 2 choices to get more venting. 1. The horizontal vent from the dual vanity needed to be increased. Or, 2. I need to run a vertical vent pipe up the wall to be the vent pipe for the for the dual vanities. I was wondering if I run a vertical vent pipe up the wall do I need to separate the dual vanity from the horizontal vent pipe or is it ok to have two vent pipes supplying the same fixtures? I'm just trying to come up with a way to mitigate the damage to a custom built-in vanity.
I guess the first question would be when the vent goes to horizontal from vertical at 4" above the flood level rim, was a drainage fitting used and is the horizontal line graded at 1/4" per foot back to the vanity? If so, then it is legal (905.3). At the point of connection between the kitchen and vanity vents, is it 6"above flood level rim? If so, it is legal (same section). Also, keep in mind if you had to tie these in at that elevation due to structural limitations- i.e. a window above the kitchen sink- your administrative authority may allow it as long as you used drainage fittings and kept to the grade on the horizontal. Sizing is not an issue in this case as an 1 1/2" line can carry up to 8 fixture units which you are under. I would like to see a picture of the scenario if possible. Email me at gorhambm@outlook.com and more can be determined.
@@BGsPlumbingClass All of the venting pipes/fittings are drainage and it all has a 1/4" pitch towards the drainage. Also, I thought the flood level rim was where the overflow valve in the sink was located but I was told today it is not and it is actually at the counter level or top of sink. With the flood level rim being at that location my previous description of 4" above is wrong. I will send you some pictures of the plumbing before the walls went up and the vanity was built. The plumbing is built in a knee wall which is the back of the vanity. The venting wasn't run up the vanity wall because all the plumbing in the house stayed out of exterior walls to maximize the R-value. I know it may not seem like a good valid reason but it is why it ended up like this.
@@BGsPlumbingClass I've just been super busy with everything going on with the house, I also don't have internet. (Update) I just had a plumbing inspection and the inspector said that the vanity with the plumbing behind it can stay as is but he wanted a pressure test done to the whole house. He wanted everything capped/sealed off and then whole system needs to be flooded from the vent stack on the roof. I don't know if this crazy or not. He said if it works then it works and if it doesn't then you're tearing it all out anyways. So besides that he wanted other areas changed that has been working for years. The toilet is a 4" flange and is reduced into a 3" pipe before dropping into the main stack, he wanted it to be 4" straight through no reducing ( I wanted to replace the flange to a 3" when the new toilet was going in but he didn't want to hear it ). The other fixes where sanitary tee's were used where wye's should be so they needed to be changed out.
at 18:35, you show a vent being offset horizontally with long sweep 90s before it gets 6" above the flood level rim. Isn't this a direct violation of the very first part of 905.3? Don't you have to use 45s to offset below flood level rim to keep it within the definition of "vertical"?
That's a great question! So, if structural conditions prohibit vertical means, then an offset using drainage fittings can be used. The first sentence in 905.3 states "Unless prohibited by structural conditions..." That is the justification for such an offset. Again, great question, I hope I was able to clarify this for you.
Terry, as it turns out, I am moving to a location that uses the IPC so I will be doing some IPC videos soon. A bit hectic at the moment with the move but I will get on it as soon as I'm settled.
So I understand chapter 9, but when it comes to looking at prints or isometrics I suck.. was going to see if you knew where to get some practice prints
@@BGsPlumbingClass wow can’t believe you answered back so late at night that’s amazing! But no not tonight. I just always have trouble understand the wet venting portion the most
This gentleman has the patience of a Saint! So appreciative for all the help he's provided in clarifying some difficult to understand areas.
Thanks Keith! You know how busy I've been but I have not forgotten about your review for the plumbing exam where you are. I'm working on some review material for our next Zoom.
@@BGsPlumbingClass Thanks Ben. The sooner the better.
Keith, email some day. I'd like to know how things are going.
Great resource, thanks for doing these
one of the best instructor I've ever had. going back in into plumbing. thanks Ben!!!
That's fantastic! You're gonna do great! Keep me updated on your progress, please. Gorhambm@outlook.com
Thank you sir, you have no idea how much of a blessing you are by uploading this videos. Thank you very much
You are very welcome!
Thank you so much for your videos. God bless you and your family too ❤ 🙏
Thank you so much! I appreciate the blessings!
I just purchased a $50 drain and vent pdf and I regret it . I get way more info in your videos ! Thank you sir 🙏🏼
Wow, thanks! Sorry about the regret on the purchase.
Indeed, thank you. There is a huge lack in plumbing education representation, in comparison to the other trades.
Which I just don't understand. Every city, or town I've looked, they need plumbers.
Amen to that. I need to add some more current videos soon.
Have you given any thought of making a wet venting videos, have some different scenarios/configurations and how to calculate the DFU's on the branches?
Wet venting was going to be my next video, but I am doing another waste and vent sizing video first.
Great Stuff!
Thanks!
I was wondering about something, Can you have too many vents? If the idea was to keep the atmospheric pressure close to equal or within 1" W.C., is ok to have say 12.56 in drain and something crazy like 25 in vent?
Great question! If I'm to understand the example, if my building sewer is 4" (12.56 square inches) would it be okay to have a total vent cross sectional area of 25 square inches? The idea is to equalize atmospheric pressure, and more vents added only helps to ensure that.
Thanks Ben!
You are most welcome!
I was under the impression that the circuit vent had to be between toilet 7 & 8 , not behind toilet #8, or rather before the last trap? was it because you started your sketch, then changed your mind? (i'm look at 48:11)
You are correct. The circuit vent is to be between the two most upstream fixtures and the relief vent just past the most downstream fixture if tied into a stack.
where is Island vent made... Do you need to put Clean Out T ? It is second floor....
I have a specific video for island venting if you'd like to watch that, it may explain what you are asking.
I'm looking guidance on range vents through walls, rules on clearances and eaves, required extension?
In order to look up the information on exhausts, you should look in Chapter 5- Water Heaters. It is primarily codes on combustion air and the exhaust requirements of gas appliances. Check there and please get back to me if you need further information.
in venting , horizontal bell reducer are approved?
Yes. As long as you are going from smaller size to larger size.
Thanks a lot
Absolutely!
35:10 the book says to connect immediately DOWNSTREAM from the fixture drain. You should connect on the other side correct? on left side?
Yes. I drew it incorrectly, and it is at 36:10. If you look at my short video on island venting, you will see a better explanation of this. Apologies for the error.
@@BGsPlumbingClass no problem, i thought I had seen that somewhere. Your very informative even as a DIYer I like to do my jobs correctly
I try to be correct in all I do, and it kills me when I make an error.
I have a dual vanity above a kitchen sink. My vent for the dual vanity only rises about 4" above the F.L.P. then goes horizontal about 5-6 feet then goes vertical. In the middle of the horizontal run the kitchen vent joins in. The vent pipe is 1.5" until it enters the attic, from there it keeps increasing in size as more it is joined by more vent pipes.
I was told that I have 2 choices to get more venting. 1. The horizontal vent from the dual vanity needed to be increased. Or, 2. I need to run a vertical vent pipe up the wall to be the vent pipe for the for the dual vanities.
I was wondering if I run a vertical vent pipe up the wall do I need to separate the dual vanity from the horizontal vent pipe or is it ok to have two vent pipes supplying the same fixtures?
I'm just trying to come up with a way to mitigate the damage to a custom built-in vanity.
I guess the first question would be when the vent goes to horizontal from vertical at 4" above the flood level rim, was a drainage fitting used and is the horizontal line graded at 1/4" per foot back to the vanity? If so, then it is legal (905.3). At the point of connection between the kitchen and vanity vents, is it 6"above flood level rim? If so, it is legal (same section). Also, keep in mind if you had to tie these in at that elevation due to structural limitations- i.e. a window above the kitchen sink- your administrative authority may allow it as long as you used drainage fittings and kept to the grade on the horizontal. Sizing is not an issue in this case as an 1 1/2" line can carry up to 8 fixture units which you are under. I would like to see a picture of the scenario if possible. Email me at gorhambm@outlook.com and more can be determined.
@@BGsPlumbingClass All of the venting pipes/fittings are drainage and it all has a 1/4" pitch towards the drainage. Also, I thought the flood level rim was where the overflow valve in the sink was located but I was told today it is not and it is actually at the counter level or top of sink. With the flood level rim being at that location my previous description of 4" above is wrong.
I will send you some pictures of the plumbing before the walls went up and the vanity was built. The plumbing is built in a knee wall which is the back of the vanity. The venting wasn't run up the vanity wall because all the plumbing in the house stayed out of exterior walls to maximize the R-value. I know it may not seem like a good valid reason but it is why it ended up like this.
@@randyrobineau2699 I sent you a response to your email.
@@BGsPlumbingClass I've just been super busy with everything going on with the house, I also don't have internet. (Update) I just had a plumbing inspection and the inspector said that the vanity with the plumbing behind it can stay as is but he wanted a pressure test done to the whole house. He wanted everything capped/sealed off and then whole system needs to be flooded from the vent stack on the roof. I don't know if this crazy or not. He said if it works then it works and if it doesn't then you're tearing it all out anyways. So besides that he wanted other areas changed that has been working for years. The toilet is a 4" flange and is reduced into a 3" pipe before dropping into the main stack, he wanted it to be 4" straight through no reducing ( I wanted to replace the flange to a 3" when the new toilet was going in but he didn't want to hear it ). The other fixes where sanitary tee's were used where wye's should be so they needed to be changed out.
at 18:35, you show a vent being offset horizontally with long sweep 90s before it gets 6" above the flood level rim. Isn't this a direct violation of the very first part of 905.3? Don't you have to use 45s to offset below flood level rim to keep it within the definition of "vertical"?
That's a great question! So, if structural conditions prohibit vertical means, then an offset using drainage fittings can be used. The first sentence in 905.3 states "Unless prohibited by structural conditions..." That is the justification for such an offset. Again, great question, I hope I was able to clarify this for you.
Great
Thank you
Do you have a video, or can anyone refer me to a IPC version of this information??
Terry, as it turns out, I am moving to a location that uses the IPC so I will be doing some IPC videos soon. A bit hectic at the moment with the move but I will get on it as soon as I'm settled.
So I understand chapter 9, but when it comes to looking at prints or isometrics I suck.. was going to see if you knew where to get some practice prints
I am going to start doing 30 minute videos on different topics, I will look into doing a few on plan reading. Great suggestion!
🎉🎉🎉
Glad you liked it!
Everything very well explained. Was hoping for more drawings on the wet venting portion to better understand each one
I will do a video explanation of specialty vents soon! Is it something you need to understand more of tonight?
@@BGsPlumbingClass wow can’t believe you answered back so late at night that’s amazing! But no not tonight. I just always have trouble understand the wet venting portion the most
@@kyleleaper8334 Do you utilize the UPC or the IPC where you are?
@@BGsPlumbingClass IPC for Philadelphia
How is everything going up there in Penn?
🎉
Thanks!
If you use 4" on everything you should be good!
Doing so will work in practically every case. Expensive but as I said, may work most times.