My logic: 90+% of the time there are just the two of us. We consume about 15 gallons of water per day, total. I've upgraded our solar to 520 watts. We spend around 4 to 5 months a year in the Bahamas, always on the hook. The solar will produce 30+ amps output most days, more than enough to recharge the batteries and make water. Now we're down to running the generator just to make hot water. 30 minutes to heat 6 gallons is preferrable (to me) to running it an hour to heat 11 gallons.
Sailing Now do you use any sort of washing
machine when you are on the hook. I have bee considering installing a Haier compact washing
machine. According to the specs it uses 8.7 gallons of water for the largest load. Consumer Guide: Haier Compact Washing Machine HLP21E Review