[C320-list] Hot Water Tank Leaking

[Russell and Kathleen Vance]

We recently returned from a 12 day cruise.   Our fresh water pump was 
cycling on every few minutes if we left the breaker on.   There were no 
faucets turned on, and we checked the aft outdoor shower -- no leaks there. 
The bilge pump was also cycling on occasionally.  After some inspection, it 
looks like the hot water tank is leaking from the bottom.  There is some 
rust evident in the lower right corner.  Has anybody had this problem?   Did 
you replace the tank, and if so, what kind of project is this?
Thanks for any information you can provide.
Russell & Kathleen Vance
Shadowfax
C320 #407