Quote:
Originally Posted by sailchef
I was thinking of having it fill from the top with a auto shut off valve and an air gap between the top surface of the water and the fill tube to prevent back flow, or even a check valve. Flooding the house is not an option
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Toilet tanks have a auto shut off valve.
Still the problem of volume. Your trying to fill a 2" hose with a 1/2" one.
A 45 gal drum contains about 6.6 cubic feet of water. A 2" hose (50' long) contains 4.25 cubic feet so you will use 2/3 of the water to just fill the hose. That leaves you 15 gals of water in the tank to work with. If your useage is larger than your supply (city water) you will run out.