I am a major proponent of the Spectra watermachines. My only issue has be their cost. ALL desalinators are expensive it seems. I still like the old 380c. Mostly off the shelf parts
and very serviceable.
Having said that, a couple of observations. Many folks don't treat their desalinators very well. I believe op's came with the boat? No telling the usage it received prior to getting it. So, the fact their was a significant amount of "deferred" maintenance
, should probably not detract from the brand. Spectra has always been first rate when I have dealt with them. And having purchased a VERY old version, on eBay none-the-less, I didn't really expect much, but go a lot more.
On of the major considerations, if you're considering a Spectra is the energy efficiency factor. It is outstanding in its usage of the same. I sized my on maximizing energy efficiency of all things. I was planning on running my generator
1-2 hours every other day or so to top up the batteries. I sized my desalintor to produce the water I needed within that window. We use about 12 gallons of fresh water per day. So we wanted to produce 30 gallons in under 2 hours. Our 380c does that pretty much that. Actually a little more, so we end up only running it a little more than 1.5 hours every other day. An added benefit is that it consumes small enough energy that we can run it pretty much from our solar panels
(At least over the daily product of our panels).