I have used the Mermaid Condensator to remove air conditioning
condensate and drain it via the raw water
line. The concept
is a venturi effect that sucks the water
out of the drain pan.
It seems to work well. The literature says it needs to be maintained, since it might clog up. In many hours of use, it has never clogged up. The only concern is the restriction on the output line, which may put stress on the raw water pump
, and the general restriction on raw water
output. We did burn up a raw water pump
, though we did get plenty of use out of it, and the raw water pumps on air conditioners seem to be maintenance
items anyway. At least by our experience. After 5 years in Florida
and the Caribbean
tropics, we have run through some raw water pumps.
Anyway, I would consider it for a smaller unit (ours is on a 5K BTU), but not for the larger units (e.g. 12K BTU or larger), since it restricts the output so much.
Also, the price
used to be much more reasonable. Mine was, I believe, $75 some years ago.
BTW, The reason I used it was that this A/C was in the forward part of the boat, the bilges were generally dry from there to the bilge
sump, and I was not comfortable introducing this much water into those forward bilges. A better way would be to use a shower sump
, with a bilge pump
in it, and connect the output to a forward sink drain. Lots cheaper, no restriction to the raw water output, and easy maintenance
. However, I had no convenient place for the shower sump