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Venting & sewer drains
I am redirecting my drain lines to another location. I am only moving my Washing Machine drain a new sink drain a new jacuzzi tub drain and a new shower drain. All will run to a 4 inch drain line to a existing old sewer line. My question is about the vent. Where should the vent be located in the line or does it matter? I was thinking I should put it in the wall between the sewer and new fixtures, I currently have a vent at the other end by the washer and would like to use it unless the location matters.
Please help Jeff |
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my question is about the vent.
The vent? You must mean "the vents". Because every fixture that has a trap must have its own vent. The only exception to this, in my area, is a floor drain. You may take the vent off anywhere you choose, however each of your fixtures must revent back to it providing that the trap to vent distances are met. Good luck, Tom |
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It depends in what part of the country you live. Some allow single vent to vent all plumbing fixtures listed, some require one dedicated vent for each plumbing fixture.
Toilet should be vented down the line, but before any other fixture connects to it. Sink is vented directly up from SanTee Tub and shower is vented behind P-Trap |
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MILO..
I can see that you are trying to work with all of us here regarding the wet venting vs individual vents, but just so posters are clear now and in the future... there is no place in the country that will allow a single vent to vent the fixtures that JEFF has suggested above! Washing machine will require its own 1.5" vent Jacuzzi tub gets 1.5" vent Shower gets 1.5" vent, etc. And I know you know that Milo... just trying to be clear for future readers... ;) Have good day all... MARK |
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 Originally Posted by Milo Dolezal
Some allow single vent to vent all plumbing fixtures listed
Toilet connects to sewer main or the stack vent. Lavatory connects to toilet drain and runs a vent off the top the stubout tee out the roof or revents back into a dry vent in the attic.. The toilet wet vents through the lavatory vent and the tub/shower connects to the lavatory drain and is wet vented by it. This is a normal rough in and is acceptable both by local and state codes and also The Standard Plumbing Code Book in 90 percent of the country. Check your local codes.to make sure you're not in the excluded 10 percent.. The vent off the lavatory may be run out the roof or revented back into a dry vent in the attic or if you're reventing back into a fixtures dry vent you must make your connection at least 6 inches over that fixtures flood rim. Just setting things straight! Regards, Tom |
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Tom, of course, I meant "stack-vent". Stack-vent is not allowed in So.California. As I am learning from this forum, in other states, this installation is supported by Plumbing Code.
But I think jsherrill should call his/her Inspector and ask him what is allowed in his area and what is not. Then, he/she can use that information as starting point... |
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Mark, in So.Cal stack-venting is disallowed. When we do larger remodels, we usually turn stack-vent into single vent for toilet and run all other vents independently. But mostly, we cut them out completely. Wet vents are also disallowed.
But, if we do small remodel in a house with stack-vent, and when we need to move only few fixtures and vents around, we are allowed to reconnect to the same stack-vent. |
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in So.Cal stack-venting is disallowed. When we do larger remodels, we usually turn stack-vent into single vent for toilet and run all other vents independently. But mostly, we cut them out completely. Wet vents are also disallowed.
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Tom, we were once working on a large new house. The kitchen was about 50' x 30' large. There was an island in the middle with kitchen sink. My plumber plumbed it for "ProVent" under the island. (meaning no vent going to the roof ) Inspector didn't approve it. He noticed later on during the project that there is no "vent loop" in the middle of the kitchen. Of course, slab was poured long time ago and carpenters were just setting cabinets. We had to file for Code variance with our Building Department, pay close to $500.00 in fees, and wait 2 weeks for it to be approved. They "bent" the rules for us. Then we installed our $7.00 "ProVent". This is to tell you how much they love "ProVents" in my area... :D
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