Robert wrote:
We just pour in place a countertop with an integral sink, our first
experience. We did forget one important thing, water need a slope to
drain completely from the sink - shame on us, our sink mold was
perfectly flat and level. The dimension of the sink is 13 * 8.5. We
would prefer not to have to grind the slope in because that would force
us to redo our perfect drain hole seat. Any suggestions ?


Without grinding a slope, the most that you could do would be
to put a slope on the entire countertop, and hope that it does
not crack. I am experienced (35 years) in construction, and I
would not want to attempt that.

Having worked with quite a few concrete countertops, I would
suggest building up the high side with several layers of clear
coat compatible with whatever type of sealer that you have
used. It would not be perfect, but it would drain most of the
water out.

IMHO, you are stuck with what you have got. You would be
better off just wiping out the excess water with a sponge.

--
Robert Allison
Rimshot, Inc.
Georgetown, TX