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My sink now works great without the air valve (which was placed between the Trap and the sink drain tail pipe. What I did was replace the grid drain with a mushroom cap drain that has a much larger...

[QUOTE=notmyjob]hey racroo,
I am having exactly the same problem as you with the slow draining of a vessel sink. Have you found a solution? I would appreciate any help you could pass on. ...

Yes the golden color grid drain is just like the one I have - it has no vents. Now you know what my set up looks like. I guess I am wondering if the vessel sinks which do not have overflow vents...

If you go to this website you will see the Kohler grid drain for vessel sinks does not have the vent openings.

http://www.us.kohler.com/onlinecatalog/detail.jsp?item=5870102&section=2

Speedball: From the research I have done online I think the drain in the picture is for a sink with an overflow. In my vessel set-up the sink sets on a countertop and is connected to the tail piece...

I have about a 1" stub of exposed PVC piping to work with. Should I install a coupling and another PCV pipe before gluing on the slip connector, so I have pipe to work with in case I need to in the...

Thanks. I boought a grid drain for vessle sinks and it made no difference. Interestingly, I stucj a straw down one of the grid holes and then all worked OK. It seems likse the individula grid...

I installed a new vessel sink without an overflow and it drains very slow. When I loosen a connection between the sink and P Trap and let some air in it drains fine, just like it did with the...

Learned that the problem is with a lack of air ahead of the P Trap. Does anyone know if codes will let me put the air admissions valve in front of the P trap?

Thanks. Most of the plumbing is hidden in a cabinet. What is an air admittance valve and where can a find a picture or sketch re. installing it? Is this a common problem with vessel sinks? Can I...

I installed a new vessel sink without an overfolw and it drains very slow. When I loosen a connection and let some air in it drains fine, just like it did with the original undercounter sink. So I...