Return to the Plumbing Forum | Post a Follow-Up

 o
Installing granite composite sink

Posted by mabeldingeldine (My Page) on
Sun, Mar 6, 11 at 10:04

Crossed posted on Kitchens Forum.

DH and I are installing our new Blanco silgranit sink today. We ordered a sink online which included a strainer basket.

The strainer basket is a deep stainless basket with a threaded tailpiece which attaches to the drain pipe with a threaded nut. There are 2 rubber gaskets included. There are no instructions included with the basket.

I've read many times NOT to use plumbers putty, as it will stain the Silgranit. Do we use silicone to seal the basket, or just tighten the nut very tightly with the gaskets in either side of the sink?

We are worried about over tightening and damaging the threads or cracking the sink.

Please help if you can, and thanks!


Follow-Up Postings:

 o
RE: Installing granite composite sink

One gasketr goes under the rim of the basket against the inside of the sink, the other goes under the sink.

There should be a large washer (it may only be cardboard, metal is better) to go between the under-sink nut and the gasket.
It lets the nut turn without hanging on the gasket.

The nuts need to be tight enough to start to bulge the gasket, and sometimes a little more to seal.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Plumbing Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here