Posted: August 25 2009 at 10:48 | IP Logged

I have a water problem being caused by my Air conditioner.  In the back of the AC unit is a drain tube which goes underneath.  The drain is for the mail coil pan and does not drain so when I take off the water spills out of the pan and sets off the aft bilge.  There is always water in the aft cabin under the fresh water tank.

Two questions:

1.  Where does it go, to the shower pump?

2.  It is kinked at the hole going under the unit, does it drain off of gravity?

I have a 2003 310

Posted: August 25 2009 at 11:49 | IP Logged

Actually there are two drains the one you describe is coming off the large drain pan. 

The one I am referring to runs off the back of the AC unit and serves the small drain pan in front right underneath the radiator.  This pan generates a lot of condensation and will fill up while runing the AC for a couple of hours.

Posted: August 26 2009 at 09:59 | IP Logged

I had the same issue on our 310 which is an 03'.  The drain hose from the pan on my boat goes to the sump pump.  The problem that I had was that the hose would get an air bubble and the gravity flow was not strong enough to push through.  What I ended up doing was adding a "T" fitting in the hose where the air bubble would form and it acts like a vent.  THe water drains now with no problem.

I also noticed that when I filled up the water tank and if I left the hose to overflow , the water tank would leak out the top by one of the fittings and leak water in the bilge under the aft berth.

Posted: August 26 2009 at 10:25 | IP Logged

I put the fitting unnder floor by the seating.  If you take the panel off above the unit ( under the cushion) you shoud see the hose.  I was able to reach down and see the air bubble and that is where the fitting went.  The "T" is pointing up and is open.  The pan drains well now and i can hear the sump pump kick on through out the day.   Good luck.

Posted: August 26 2009 at 10:35 | IP Logged

My hose comes off the back of the unit and you only see about 6-7 inches then in goes underneath.  Is this the same on yours? 

Mine is kinked as it goes thru the hole down underneath the floor.  I thought that may be part of the problem as well.  Unfortunately I have tried to unkink it without much luck