Join Date: Dec 2000
Location: Port Aransas, Texas
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Re: Water tankage - how much can/ do you carry?
We spent two months in the Exumas in 2016, mostly on the hook. We have a Spectra watermaker, and that provided all of our tank water from the time we crossed over into Bahamas, until we left. (Our tank is clean, and we drink out of it, so didn't want to risk contamination from any other water supplies.) Anyway, we are not water wasters - in my opinion - nor heavy conservers. We averaged 10 gal fresh water consumption per day, including drinking, washing dishes, showering each evening before bed and rinse down after swims, rinsing down snorkel gear, and cleaning the bbq griddle after use each day. And making ice for cocktails! We have 105 gal tank, and generally kept water level between 25-40 gal. Not filling the other 70 gal of water tank meant we were 70*8.3 lb/gal =580 lbs lighter when sailing. Which is a noticeable difference to performance.
The Spectra 150D made 7 gal/hr using 8 amps, which was fully sourced by the solar panels in a sunny afternoon run. We would run the watermaker every 2-3 days. It's impossible to ECONOMICALLY justify a watermaker for Exumas trip, but the convenience is well worth it if you can afford it. Plus I never had to test my partially-torn rotator cuff tear by hauling water jugs, nor was a slave to having to leave a remote anchorage because we were running short on water. Which also usually happens in bad weather, according to my non-WM friends! Plus we also made some good friends by delivering strangers 6 gal collapsible jugs of RO water.