Plumbing Guru's, I'm working on a bathroom remodel and am about to replace the sink drain pipes to the vent stack. I've got the old pipe removed and am ready to replace it but I wanted to get some advice on what size to use. It looks like the old brass drain was about 1.25", is there a new standard size to use here?
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hj
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pipe
It depends on how far you are going to replace it. 1 1/4", unless the drain is ancient, was seldom used for anything other than the final connection. 1 1/2" or 2" was the usual drain pipe size.
It depends on how far you are going to replace it. 1 1/4", unless the drain is ancient, was seldom used for anything other than the final connection. 1 1/2" or 2" was the usual drain pipe size.
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I just realized the threaded female connection to the vent stack is only 1 1/4", is there any benifit to using an adapter to utilze a 1 1/2 pipe just to be converted back down to a 1 1/4" at the p trap, or should I just use 1 1/4 all the way from the vent?
Dunbar Plumbing
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Can't increase that pipe size then reduce it at the stack. You'll have to keep it 1.25" all the way.
Big box stores sell that smaller pipe.
Big box stores sell that smaller pipe.
hj
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tee
IT must be a real "hack job" because I have NEVER seen a drain tee with a 1 1/4" opening. If it is a straight galvanized "water line" tee, then it is the wrong fitting anyway and should be replaced. Can you shoot us a picture of the tee?
IT must be a real "hack job" because I have NEVER seen a drain tee with a 1 1/4" opening. If it is a straight galvanized "water line" tee, then it is the wrong fitting anyway and should be replaced. Can you shoot us a picture of the tee?
Here is a pic of the vent stack on the left I've already removed the 1 1/4" pipe on the right it goes to the bathroom on the other side. I'm going to be replacing both. I cant find a p trap converter for a 1 1/4" pipe, so I might have to use 1 1/2" pipe from the stack. Will there be any issues with this?
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