On Jun 16, 9:53 pm, wrote:
...I have 280 gal in water tanks -
so the idea is to run the WM once a week or two and fill the tanks.
....

You use 280 gallons a week or two? Wow. How many POB? I've got a 12
volt Spectra but that will be way to small for you. There was a
Canadian guy in New Zealand who was making engine driven very high
output watermakers using off the shelf parts. I watched a demo. Very
impressive. I think his brother took over the company and is selling
them from Canada (BC?)... Something along those lines might work as
direct drive off your genset...

-- Tom.