Our Spectra 150 watermaker has been everything and more to us on this trip. I can't overstate the feeling of independence that this adds to the ride. Knowing that you don't have to go to shore to fill water jugs or water tanks is wonderful.
Now you'll hear from some that it's not worth the effort......too hard to keep clean....have to pickle the system .....takes too much energy....
But I can tell you that these are all minor variables that are far overshadowed by the big plus...WATER and and endless supply of it for boat washing, dishes, showers and of course.....drinking.
We keep our filters clean. Here in the Bahamas where that wate is crystal clear, this is a very easy thing to do. We can go weeks without changing pre filters and when we do, the system was installed...by me..to make this job easily accessible. When we are in not so clean water, the filters do have to be changed more often but that is easily gauged by the water quality.....look at it. On the icw in the middle or some anchorages along the way, the filters have to be changed every other day.
Pickling or putting the system down for extended storage only has to be done if your off the boat for weeks or months.
Energy.....we designed our boat systems around our solar panels. The 300 watts of sun power provided by 4 Solbian Flexible panels gives us enough energy to run the watermaker....oh yes, did I mention that the frig and freezer also run 24/7.
This year we supplemented the solar with a Superwind 350 wind turbine. Wind energy is very easily harvested once you get south of Florida where the trade winds blow pretty much non stop. We have found that the addition of this unit has provided us with a great extra source of battery power.
In the nutshell.....water=good energy input from sun and wind + a simple and timely filter maintainence.
You won't regret the feeling of independence ....