This does not make sense!
Why would you deplete your stored energy in your batteries to run a 24 volt motor on your water maker. If you managed your water storage enough, you would be utilizing your genset output each day to top up your water using your 110/240VAC motor while replenishing your battery capacity at the same time.
I have a 24VDC motor on my Dessalator and I would gladly swap it for a 240VAC motor. Ridiculous as it may sound, the amperage used to run a 24VDC motor has to be replenished by running the Genset to keep the batteries topped up. Needless to say, I run my Genset while making water and charging my batteries at the same time.
Barry & Robyn
Tradewinds III SM #171