1000 gallon water tank that costs only $300

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The sketch above shows a 1000 gallon water tank that is made from

three 8 x4 foot x 3/4 inch plywood. Two pieces of 4" x 4" x8 ft wood hold the plywood together in the corners. There is no wooden bottom. A plastic tarp liner is placed inside the tank to prevent leaks. Another smaller tarp can be used to cover the water in the tank to prevent leaves and other debris from entering the system.

A PVC toilet flange is used as a 3 inch outlet to a 3 inch PVC pipe connection to the pump. The toilet flange info is shown on the next page.

The photo above shows the PVC  flange and a hole in the plywood that the flange will fit through. Black glue is shown on the plywood, and the red ink on the flange shows where the black glue must go on the flange.

The photo above, on the left, shows the tarp liner of the tank that has a hole that the flange will fit through. The tarp hole is glued to exactly fit over the hole in the plywood. Then the flange is glued in the area of the red ink, and flipped over and glued to the tarp. The flange is then screwed into the plywood, and the glue is allowed to dry. (The red ink is in the photo only for explanation.) A closeup of the glue will be shown soon.