Tub drain fixture leaks!

[Deb Mac]

Originally Posted by Bill

Thank you for posting this. I have taken the liberty of "enhancing" your first two photos. Hope you don't mind. Can't wait for the announcement "No more leak!"

Bill

No problem. Enhance away. Unfortunately I have found exactly where the thing was leaking…. Inside the top knurled abs nut, there is supposed to be 2 little lips, that keep that nut on the pipe, and puts even pressure on the washer inside. One has broken off, worn off, possibly from being over tightened over the years, or just time and a little misalignment. In fact, with just a little lift, I can pop that nut right off! I discovered it after looking more closely when it looked cross threaded, though I knew it wasn’t…

So still leaking. Tested in the bathroom sink…. I have a possible fix though…. Will let you know after an evening of chewing on it and see if I can come up with a workaround. I have tried to find a replacement, but everything I can find is 1 1/4” at the strainer end, but 1 1/2” at the outlet to the grey tank. These are 1 1/4” at both ends. Might have to do some creative abs surgery. Maybe buy a replacement and “transplant” the distal end of this onto the new one.

Fortunately, our local bargain shop has something that looks perfect, except for the 1 1/2” back end. So I will take the whole thing over there tomorrow morning, make sure the front end fits everything properly, and “scrub in” for some surgery. More to come.

[Wavery]

Originally Posted by Deb Mac

No problem. Enhance away. Unfortunately I have found exactly where the thing was leaking…. Inside the top knurled abs nut, there is supposed to be 2 little lips, that keep that nut on the pipe, and puts even pressure on the washer inside. One has broken off, worn off, possibly from being over tightened over the years, or just time and a little misalignment. In fact, with just a little lift, I can pop that nut right off! I discovered it after looking more closely when it looked cross threaded, though I knew it wasn’t…

So still leaking. Tested in the bathroom sink…. I have a possible fix though…. Will let you know after an evening of chewing on it and see if I can come up with a workaround. I have tried to find a replacement, but everything I can find is 1 1/4” at the strainer end, but 1 1/2” at the outlet to the grey tank. These are 1 1/4” at both ends. Might have to do some creative abs surgery. Maybe buy a replacement and “transplant” the distal end of this onto the new one.

Fortunately, our local bargain shop has something that looks perfect, except for the 1 1/2” back end. So I will take the whole thing over there tomorrow morning, make sure the front end fits everything properly, and “scrub in” for some surgery. More to come.

Could you use a clamp on rubber reducer?

https://www.amazon.com/EVERCONNECT-4...s%2C315&sr=8-3

Here's an ABS trap reducer:
https://www.amazon.com/Genova-Produc...s%2C367&sr=8-9

There seems to be all sorts of 1.25" P-traps available.

https://www.amazon.com/s?k=1.25%22+a...ref=nb_sb_noss

[Deb Mac]

Originally Posted by Wavery

Could you use a clamp on rubber reducer?

https://www.amazon.com/EVERCONNECT-4...s%2C315&sr=8-3

Here's an ABS trap reducer:
https://www.amazon.com/Genova-Produc...s%2C367&sr=8-9

There seems to be all sorts of 1.25" P-traps available.

https://www.amazon.com/s?k=1.25%22+a...ref=nb_sb_noss

The part that needs reducing is at the end of the curve where it connects to the elbow, so those sleeves won't work... Thought about that, but there isn't a straight length of pipe to slip it onto, and there are a lot of P/J-traps around, and I have been looking for about 4 or 5 days now, but anything I have found that is the correct dimensions and shape (ie, that will fit in that little space) are all 1-1/4" at the tub end, but 1-1/2" at the tank end of the curve because the 90 degree elbow going to the tank pipe is 1-1/2". Our elbow is 1-1/4" - at the trap connection at least. I am not going to work any farther back than that. If I start cutting the pipe going to the grey tank, I will be opening up a world of hurt for myself I think!! I have to leave the elbow that is there in place.

I think what I am going to try is removing that protruding "ring" of abs (the one that would keep the nut from sliding down the pipe - the little red arrow) with a dremel, and use a rubber collar directly from the threads of the strainer to the abs. Keeps everything the correct length so everything still lines up, and adds a little flexibility to the structure. Going over to the local go-to shop and see what they have. If I'm lucky, I will be able to thread a 1-1/4" rubber coupler right onto the strainer threads.

The other possibility is to buy a new trap (our local shop has this exact one!) And cut the "basket" ends off of both (if it fits the strainer - I have the whole assembly with me to test fit!). Transplant the new one onto the old trap, connected with a rubber collar. The more I think about that, the easier it sounds!! Or cut the old one off, put on a fresh piece of 1-1/4" pipe with an abs coupler, and attach THAT to the strainer threads with a rubber coupler.

But no matter which way I look at it, I can't track down an exact swap. I could buy all of the pieces and build one (maybe!) like I had to with the dump valves, but that is such a confined space in there, if things aren't just the right length, there's no room for adjustment. And I need to get this part of the job done, so I can start on other things that need doing. Heading out in early July, and a month sounds like a lot of time, but I have spent 2 weeks just on plumbing between the pump, the toilet and now this.