Originally Posted by Wmiii
We live aboard in Bradenton Florida
. Our Marine
Air system runs basically all the time. The condensation collects around the units and drains into the bilge.
Occasionally the drain tube stops up and water
overflows the tray and into the floor which has discolored it.
Is there a way to keep the tube from stopping up or some treatment that helps, or just 'blow' it out every so often?
A. Ensure you have an effective filter on the return air and particularly in front of the evaporator grill
assembly and clean or replace these regularly. If not, dust/debris that lodges in the vanes of the evaporator will be washed into the condensate pan by the condensate run-off, creating mud in the pan that will obstruct the collection pan drain tubes;
B. From time-to-time, at least weekly if you are living aboard
24/7, use a long tube to squirt a bit of bilge cleaner into the condensate pan to help breakdown debris and any algae that might be developing there and wash it through/out of the system. A squirt of Lemon Juice into the pan periodically will also help keep things clean and prevent odors.
FWIW, we do the foregoing but also periodically use our shop vac to suction out the condensate drain lines (we have two, one each on the port and starboard sides of the pan that are joined at a T-fitting and a single
line to the bilge) to ensure there are no obstructions.