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-   -   new vanity faucet is leaking (http://www.diychatroom.com/f7/new-vanity-faucet-leaking-173471/)

kevind 03-03-2013 11:14 AM

new vanity faucet is leaking
 
Hi all,
I'm trying to install a new faucet inside a new vanity. I've got everything hooked up in this order (top-to-bottom):

- Chrome drain plug / tailpiece assembly
- plumber's putty around plug
- sink
- large rubber donut washer
- plastic friction washer
- plastic nut
- plastic tailpiece
- drain extention
- P-trap

But it has a slow leak which comes out the underside of the plastic nut. I'm guessing it's due to a bad seal of the donut washer on the sink? Do I just need to use some teflon paste here?

Another note: the sink came with a foam washer which is supposed to go between the drain plug and the sink. I installed it this way first and had the same problem, so I removed the foam washer and used plumber's putty instead, but the problem persists.

old_squid 03-03-2013 12:33 PM

take it back apart and carefully look at the bottom of the sink where it exits. there may be something there that is either keeping it from sealing good or a crack or large scratch the water can migrate out through. It's possible that the water is following the threads out past the gasket.

joecaption 03-03-2013 12:47 PM

Or just not enough putty was used or the nuts was not tight enough.

oh'mike 03-03-2013 01:19 PM

Quote:

Originally Posted by old_squid (Post 1128928)
take it back apart and carefully look at the bottom of the sink where it exits. there may be something there that is either keeping it from sealing good or a crack or large scratch the water can migrate out through. It's possible that the water is following the threads out past the gasket.

^^^^ He has done this before^^^^^^:laughing:

Feel the hole at the bottom of the sink with your finger--some times there is a rough spot---

Some times, I add a bead of silicone caulk to the gasket/sink bottom area before tightening-----

TheEplumber 03-03-2013 01:21 PM

I've gotten to the point of adding teflon paste on the tailpiece threads where the washer is. Shouldn't be needed but it has cut my call backs down....

kevind 03-03-2013 01:48 PM

2 Attachment(s)
Okay, I checked out the bottom of the sink. Pics are attached. Not sure how clear it is, but it looks like the drain has a small notch on one side.

So....what to do now? I've already got the vanity bolted to the wall, and it's got several holes in it from drilling and cutting out sections to make room for the pipes. Can I salvage this without having to return the vanity?

oh'mike 03-03-2013 01:52 PM

Sand or file that a bit---add silicone to the gasket/sink connection and give it a try---dry the area with a hair drier first----if that fails----take it back----but I believe you will make it work---


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