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Old 11-15-2015, 01:13 PM   #1
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Major issues fitting new drain to bathroom sink.


So Iím replacing a bathroom faucet. Faucet went on no problem. The drain however, is not going so smoothly. The previous drain was the metal popup kind. The new one is a Pfister push & kind.

Now, this drain comes with a rubber gasket that is supposed to sit in the sink bowl, under the flange. The manufacturer expressly says not to use plumbers putty.

The problem Iím having is with my sink! There are two issues:

1) The sink is uneven so the drain does sit flush; as I tighten the assembly underneath, the drain pulls to the right.

2) There isnít a recess that accepts the rubber gasket AND the flange, so both sit above the bottom of the sink. It seems like thereís some kind of ring of epoxy or plastic where the rubber gasket would otherwise nestle into.

I've attached pics.

So, what are my options? Ditch the top/sink side rubber gasket and use silicone? Try to remove that interior ring of material and hope the gasket and flange will fit into it and sit lower in the sink bowl?

Iím at a loss!
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Major issues fitting new drain to bathroom sink.-drain01.jpg   Major issues fitting new drain to bathroom sink.-drain02.jpg  

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Old 11-15-2015, 01:47 PM   #2
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forget the gasket and use plumbers putty

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Old 11-15-2015, 01:47 PM   #3
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Usually the gasket goes underneath the sink and you put plumbers putty under flange, make sure its even while tightening it down. Just a suggestion.
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Old 11-15-2015, 02:01 PM   #4
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Quote:
Originally Posted by jmon View Post
Usually the gasket goes underneath the sink and you put plumbers putty under flange, make sure its even while tightening it down. Just a suggestion.
There are two gaskets: a smaller one that's supposed goes in the bowl, and another much larger one that goes underneath to form the seal.

I believe the assembly is plastic, so plumber's putty isn't recommended (it can eat away at the assembly over time).

I'm considering just getting a different drain at this point. The faucet doesn't allow for the popup style drain, so I might just get an old school drain that has no included drain stop mechanism.
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Old 11-15-2015, 02:13 PM   #5
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I usually use caulk instead of plumbers putty now a days. I think I would try and caulk the drain to the sink.
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Old 11-15-2015, 02:26 PM   #6
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The second picture you posted with red arrows looks like a combination of old plumbers putty, silicon and a washer that needs to be scraped off.
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Old 11-15-2015, 08:44 PM   #7
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Use 100% clear silicon caulk. Not the water based stuff.

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