DIY a Corian countertop with under mount sink along with garbage disposal......

[paulawill2]

I was writing about how to support the under mount sink, now I may have a plumbing problem. The garbage disposal may be to low to drain properly? So, in addition to finding out what supports the under mount sink more than silicone glue, I may need to lower my drain? hum
boy I've learned a lot from your site. thank you.

 

[Terry]

With top mount 7.5" sinks, 19" was fine.
As the sinks get deeper, the need to lower the rough is more important. My new rough for kitchens is 16" from the floor.