Hello:
I am installng a new one piece bathroom sink (marble/fakemarble type). I purchased a pop-up drain assembly by plumbcraft to install in the sink. I have a couple questions to be sure I get this right:
The flange came with a rubber washer. Most DIY instructions I have seen says to either use silicon sealant under the flange (for marble type sinks) or a strip of plumbers putty. My question is can I use this washer instead? If so, should I coat it with silicon on both sides or is the rubber enough? If not----why? It seems the rubber would create a much better seal. But---that is why I am asking---I have no idea.
On the underside of the sink, do I (should I) coat the rubber washer that forms the seal under the sink bowl with silicon first, or will the rubber itself form an acceptable seal. How tight does this drain assembly need to be? I do not want to crack the bowl---but---I do want a good seal.
thx for any time and effort in responses.
peace