I recently had a new D/W, sink and countertops installed. The sink
only had 2 holes (faucet and soap dispenser) so we nixed the air gap.
We were told that we didn't need it. I previously had an air gap. The
D/W installers took out the "Y" connection and ran the line from the D/
W directly into the disposal. (Same disposal as before). I know that
the air gap is used to prevent backflow into the D/W....but since the
install I have noticed a weird problem. My sink doesn't always drain
so well (doesn't always happen). In order to get it to drain better I
have to shove something into the drain or turn on the disposal. It is
almost as if there is a big air bubble that causes this. Can this be
cause by the exclusion of an air gap? If so, I can try out one of
those combo soap dispenser air gaps.
I know someone will ask, but the problem isn't food that is backed up
in the disposal.
Make sure the dishwasher drain hose has a loop and doesn't just go
straight down into the disposer. That should work similar to what
airgap does, although having an airgap is better.
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