I have SM 141 from 1995.
My current problem is a fresh water leak somewhere in the aft head. Some time back I noticed that there was a fresh
water accumulation in the cavity under the entrance to the aft head. This is where you can access the head sea
cock and where the drain hose from the shower pan passes through going
forward. I was able to confirm that the leak
is not from the shower drain hose aft end where it attaches to the shower
pan. So the only other place could be where
the drain hose passes through the forward wall of the cavity. Unfortunately this is very difficult to
access. I was eventually able to put
another clamp on the hose and tighten it.
To isolate the source of the leak I stopped using the aft
head completely to determine if that would eliminate the water
accumulation. However, it did not and a large
amount of fresh water accumulated in the cavity again. This time it was much cleaner which led me to
believe it must be coming from the hot or cold fresh water supply lines. But I cannot see how a leaking fresh water
supply line would have a path to allow water to enter the cavity in front of
the head door. I turned off the fresh
water pump to determine if that would stop the leak. If yes, then it would confirm that the leak
is from one of the supply lines. But
that would not explain how it gets into the cavity.
One possibility is that there is a leak of one of the fresh
water supply lines that leaks into the shower pan and then leaks out where the
shower pan drain line exits the cavity at the forward end (where it’s difficult
to access). Unfortunately, I’m not at
the boat now so cannot determine if turning off the fresh water pump stopped
the leak. But I’m pretty sure it must
have.
If anyone recognizes this scenario, please advise. I suppose I will have to disassemble the sink
to see where the leak is and then replace the shower pan drain hose. The problem is how to replace the drain hose
given how difficult it is to access the forward end. Any suggestions are welcome. I will be flying back to the boat in a
week.
Regards,
Bill Shaproski
S/V Pacific Cool
