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Clogging of a/c coondensate drain lines can be due to one of several causes:
1. Not enough slope in the drain line- This isn't particularly easy to fix
because of the geometry of your boat's a/c and bilge. The best solution is
to deal with fixes 2-3 below which are probably the more basic culprit.
2. Dust in the evaporator that washes off into the condensate drain pan and
then clogs the drain- First wash the evaporator to clean off all existing
dirt and dust. Secondly clean or replace your intake air filter and make
sure it is sealing well against the evaporator. The evaporator is the finned
coil that gets cold from freon expanding.
3. Algae growth in the bottom of the condensate drain pan. That is why
bleach is recommended to kill the algae. If you dump about a 10% bleach
solution in your condensate pan, let stand for 30 minutes or so and then
flush with lots of water, then the effects of corrosion should be tolerable.
David
-----Original Message-----
From: Sam Densler <>
To: <>
Date: Wednesday, July 11, 2001 10:43 AM
Subject: lv-ab: Air Conditioner drain
>One more question now that I am on a roll.
>
>Seems that I have a partially blocked AC drain. A recent comment on
>this list indicated the smell and potentially destructive nature of
>the deionized water that results from the AC process. It seems that
>I am experiencing exactly that. I have been successful in clearing
>the blockage (at least partially) and I seem to get good flow for a
>couple of days but then the flow stops again. It is easy to clear by
>blowing through the hose but this must be accomplished every few
>days. Can anyone recommend a cleaner that may help with this
>situation? Bleach was recommended but I am a bit nervous because I
>was told that bleach would etch stainless steel and aluminum and I
>have also used ammonia and ammonia based cleaners in and around that
>area and don't know if I have a hazardous condition with the mix of
>ammonia and the chlorine from the bleach. I am sure the ammonia has
>dissipated by now but the use of bleach has never been a favorite of
>mine. Again, any suggestions would be greatly appreciated.
>
>Thanks,
>Sam
>
>--
>****************************
>
>Sam Densler
>
>
>S/V Stories She Could Tell
>Endeavour 37
>Melbourne, FL
>
>****************************
>
>"If you ever wonder why you ride the carousel,
>you do it for the stories you can tell."
>
>Jimmy Buffett
>"Stories We Could Tell"
>A1A
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