Join Date: Sep 2006
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In the blazing heat of the Gulf of Mexico, each man was drinking... drinking alone now... 4.5 litres (one UK gal) per day. So each man is going to need about 50 litres for the trip, drinking only. Multiply that by 5, and add a margin, say 300 litres, all up. (66 UK gal, say).
Forget the idea of squeaky-clean showers, either that or get that water maker. The fastest shower ever taken by us was 5 litres. Instead, use a bucket of seawater and some salt water soap.