Help with bathroom drain

[Rsmith99]

 

[Tuttles Revenge]

1- Putty yes. This seals the water in the bowl from going past the stopper.
2- Nothing. Those threads don't seal anything
3- I often use silicone on these threads to make up for the rubber gasket not doing its job. I smear a tiny bit where the rubber gasket will eventually rest but not below the rubber gasket where the silicone will lock up the nut. It shouldn't be necessary if the rubber is quality.
4- shouldn't need anything if the rubber and the sink match up well.
5- Teflon tape or work in some plumbers putty into the threads. It depends on how visible that joint is going to be. I can wipe off the excess putty easier than cutting the showing tape.

 

[Sponsor]

 

[Rsmith99]

1- Putty yes. This seals the water in the bowl from going past the stopper.
2- Nothing. Those threads don't seal anything
3- I often use silicone on these threads to make up for the rubber gasket not doing its job. I smear a tiny bit where the rubber gasket will eventually rest but not below the rubber gasket where the silicone will lock up the nut. It shouldn't be necessary if the rubber is quality.
4- shouldn't need anything if the rubber and the sink match up well.
5- Teflon tape or work in some plumbers putty into the threads. It depends on how visible that joint is going to be. I can wipe off the excess putty easier than cutting the showing tape.

Thanks!

 

[MTy]

Not a pro. But just realized yours is the same as mine which I recently made a post about. I had to put pipe dope at 5 because Teflon tape wasn't enough. The threads at 3 I was still having some leaking. Not sure what to put there since the leaking isn't between the rubber and sink.

 

[Tuttles Revenge]

Not a pro. But just realized yours is the same as mine which I recently made a post about. I had to put pipe dope at 5 because Teflon tape wasn't enough. The threads at 3 I was still having some leaking. Not sure what to put there since the leaking isn't between the rubber and sink.

Dry the threads and add a thin layer of silicone to the threads. The rubber is supposed to smoosh into those threads to seal, but a less quality rubber might not. The silicone will fill those gaps and make contact with the rubber.

 

[Terry]

Below is a picture that I found.

1. Under the flange, putty or Silicone. I use putty.
3. Pipe dope on the threads there, yes I do that. I have also used putty on the threads.
5. On the tail piece, I've used tape, putty and dope.

 

[Rsmith99]

Below is a picture that I found.

1. Under the flange, putty or Silicone. I use putty.
3. Pipe dope on the threads there, yes I do that. I have also used putty on the threads.
5. On the tail piece, I've used tape, putty and dope.

Pipe dope is compatible with the rubber?

 

[Tuttles Revenge]

Pipe dope is compatible with the rubber?

Not sure if its tested, but seems like if its good on flanges.

https://rectorseal.com/rectorseal-tru-blu-group/

• Excellent as a gasket adhesive on flanges. For use with potable water

 

[Terry]

I've been doping the threads for decades. I got tired of reinstalling drains that leaked when nothing was added to block the pathways.
Putty for a long time, then got lazy and used dope. It's just on the threads, not the rubber.

But still, always looking for ways to reinvent plumbing. I've been told by other plumbers,

"Don't give away our secrets!!"

You're welcome.

 

[Terry]

I've had maybe two bowls that were very wonky where the rubber donut met the bottom of the bowl, and thank goodness I had some Silicone on the van. Nothing else was going to work there.

 

[Terry]

One drain I never worry about is the plastic Phister pop-up drain. It comes with a seal for the top flange, and there are no threads where it passes through the donut at the bottom. Hand tightens easily and never leaks.

Older Mercer Island home plumbed with 1-1/4" for the lav drains.

 

[Rsmith99]

Below is a picture that I found.

1. Under the flange, putty or Silicone. I use putty.
3. Pipe dope on the threads there, yes I do that. I have also used putty on the threads.
5. On the tail piece, I've used tape, putty and dope.

 

[Rsmith99]

What kind of pipe dope do you recommend?
Thanks for your help!
Ron