Regarding maintaining a watermaker
, while I'm sure some have units that require constant attention and repair, most people we meet rank their watermaker
as pretty robust.
There is routine maintenance
of flushing it occasionally, maybe pickling if left alone for a long time, changing the filters every so often and changing pump oil
every couple of years. The flushing and changing filters take <5 minutes, and pickling <20 minutes.
It is definitely simpler to not have one - just like everything else on board.
You probably shouldn't count on catching rain - particularly on passage
. So getting a real baseline usage rate for your boat and crew would be a good thing to do before setting off on a month-long passage
. Your tankage comes to 5gal/day for a month - not a lot for two, and definitely very small for more.
We have a permanently installed 150sqft water catchment system that can collect 375L/hr during deluge rain, run it through filters and deliver it straight to our tanks without us doing anything except turn a valve. We have yet to experience enough rain on a passage, during times it wasn't mixed with salt water
, to collect water while underway. Squalls are nice for rinsing things off, but they don't last long enough to flush everything away and then provide clean water. You will be hoping for longer-term crappy weather
if you rely solely on water-catchment.
I cannot even comprehend living on 3L/day. Not even 7L/day. Where did you find these WARC data? I have been around the WARC fleets for 2 years and it would surprise me if these boats are using that little. They are, for the most part, large, newish, well-equipped boats - and most of their owners and crew look very clean and determined to stay that way...
I drink 3L/day just keeping hydrated. Call me wasteful and not a "real" cruiser, but I also enjoy washing
down each day with more than a single
spritz of water out of a spray bottle.
For us, 10L/person/day would be minimum. And not stanky water that has been sitting in jugs in the sun on deck
for 3 weeks.