I had the same problem and plugged the tank. The system seemed to run the
same since there is an expansion tank on the water pump. When I arrived in
St Martin, they had an exact replacement for about $80- at budget marine.
Amel Super Maramu #376 Kimberlite
[mailto:email@example.com] On Behalf Of jfolino901
Sent: Tuesday, December 18, 2007 5:46 PM
Subject: [Amel Yacht Owners] Hot water expansion tank, Sulajon
Has anyone found all the tank water gone without a reason? I did today.
It turns out my 750 liters leaked from a hole in the expansion tank
into tghe bilge which while I sailed along oblivious to the problem,
only to find the water pump running when I got to port. I checked the
water tank, found it to be empty?? How? I ran the water maker, made
some water & ran the water pump. Seeing a flow of water I searched and
found a hole in the expansion. I disconnected the expansion tank, stuck
a tapered wooden plug into the hose, made more water, turned the water
pump on & water pressure.
As for the tank, I'll get one.
What is the downside of no expansion tank? Any suggestions short term?