Decolav 1201 Drain Problem

[dwh1262]

I have the Decolav 1201 SS sink under-mounted to my granite counter. It appears that I need a special drain as none of the ones I saw available are for sinks that are the thickness of stainless steel only. Most seem to be for sinks that are more than 1/2" thick where the drain is connected. So, anyway, I bought one and used some rubber gaskets to fit it securely to the sink, but now I see that the last inch of the water left in the bowl will not drain quickly. It drains fine until that last inch. Am I missing something?

 

[dwh1262]

It is now draining properly, but I wonder still if there is a specific drain for such a thin sink with proper seals.

 

[Caduceus]

I believe that a standard 1 1/4" grid strainer is what would be installed. Like some vessel bowls. There is no overflow on the bowl, is there?

 

[Caduceus]

Here we go...Manufacturer recommended accessories.
Decolav 9290 grid strainer
" " 9296 push button closing drain
" " 9100 decorative bottle trap