Wannabe Sailing Bum
Join Date: Mar 2008
Location: SF Bay Area
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Cruising GPD water usage average
Searching the forum pulled up some discussions on watermakers, but none really seemed to note any GPD averages. I will have 5 guys aboard my boat for 10 days, with really no place to replenish the water supply. I've struggled with the notion of adding a $4k+ watermaker for those 10 days. Just doesn't jive with me to spend that kind of money for something I won't use that often.
So, I have three tanks totalling 222 gallons. I figure for water consumption, using nice round numbers that if all of us were 200lbs, we'd need 128ounces per day for 10 days which equals 7.81gpd. Times 5 crew is 40 gallons. I can carry that in water cans.
How do you figure usage for cooking, quick pots/pan/utensil rinse and a shower, say, every other day?