Hi again -

I found an old thread I started when my sink cracked (pressure cracks, I'd written). The disposal I have is a 1 hp Insinkerator which Rohl said isn't a problem.

I'm wondering if this comment someone wrote about a putty might be what I'd read in the past. If you're knowledgable about such things, please let me know if this makes sense to you reading this!:

"I can get things tight enough that most of the guys I work with cannot loosen them without tools, and my regular plumber can get them tighter than I can.

Making sure the joint has some decent durometer rubber to conform to the surfaces is a much better way (and the rubber acts as a locking mechanism)."

Thanks!

I've read that generic "plumber's putty" is slightly acidic, hence not utilized to secure flanges, faucets etc where clear silicone will do instead.

So, perhaps you're recalling something about plumbers putty itself?

You might place thread seal tape (PTFE)over the pipe to which your garbage disposal hose end is affixed. It's sometimes called plumbers tape or if by a manufacturer, Teflon tape. It acts as a lubricator, allowing the pipes' threads to be tightly screwed together thus creating a better seal.

This is the putty we used on our Silgranit sink/disposal. The plumber said silicone would not hold well and he agreed that regular plumber's putty should not be used. It's been 2 months and everything is great so far.

We used the same one shown in the picture above. The plumber was a bit taken aback when I told him he couldn't use his normal putty and I had special putty for the soapstone. But he used it

Thanks SparklingWater! Do you think I could use the tape and silicone together? Totally ignorant here if you can't tell.

Thanks TexasPenny and Katy-Lou! The container doesn't mention anything about sinks/drains though - just countertop material. This is really the right stuff?

(and disposals which are metal, of course)

(and disposals which are metal, of course)

Yes it goes under the flange that fits in the sink cutout, flange has a lip on it below that the gd locks onto with included locking ring. Screws on gd compress entire set and hold snug together. Putty provides water tight seal under flange.