Specialty Gardening: Need ideals for rain barrel, 1 by drivenbonkers

drivenbonkers wrote:
the other set of barrels at the greenhouse. these barrels collect the water from the greenhouse roof. By connecting a hose between this set of barrels and one of the sets at the house, I can use water from all 3 pairs of barrels

This pair is also connected to each other (fittings are on the 'bottom' of the barrels, and there's a connection from one of the barrels thru the back of the greenhouse with a tap on the inside. There's enough gravity water pressure to water with a hose inside the greenhouse.