DandV

I was once given the specifications to construct and to operate a hot water shower for off shore cruising. Given to me by a very experienced off shore solo sailor, so he was a bit odd anyway. A design that was evidently well proven by numbers in the offshore cruising community. Start with an empty 1 litre plastic milk bottle. Drill a 5/32 hole in the middle of the screw cap, the diameter was evidently crucial. To use boil a cup of water. (or was it half a cup? can't remember) Top off with cold water. (I don't know why you just did not heat 1litre of water to the correct temperature) Squirt half the contents with soap around targetted areas of the body. Squirt the remainder to rinse off the soap. So a 300l tank should be able to shower 300 people. Never tried it though. Only had a metric drill set.

And what happens when all this happens on a bend? Is their a bent bernoulli bypass theorem, or bent bernoulli bang?