S Sittservl wrote:

> <snip> My question is, does anyone have any suggestions for preventing water
> from collecting there or soaking the insulation in the first place?  I suspect
> the water is a combination of condensation from the fridge, and water dripped
> down through the vent slots, but I don't know for sure.

IMHO
The most likely source of the water behind the sink is a leaking/broken city water
connection. This part is plastic. It contains a check valve which holds water. If
this water freezes it will crack the fitting. Because people tend to hang the city
water hose on this connector, it is likely to crack from use/abuse.

The next most likely source of the water is a leaky window seal. Look for signs of
rust on the inside in the lower rear corner of the window seal.

BT,BTTS
Larry