'The system had 1 large tank and 2 smaller tanks. It was hard to tell in the cramped compartment, but it looked like the large tank could hold about 50 gallons. The tanks were connected to a fill and drain valve that passed through the fuselage just behind the drain valve for the waste system.
When I had a chance to look for this connection under the plane I found it cunningly hidden behind a panel under the panel used to access the waste drain. I began to trace the piping from the pumps. These pipes lead to a network of small pipes that ended in the trailing edges of the wings and horizontal stabilizers.'
