The Handytank™ Rain Water Collection System attaches to the rain gutter downspout of your home or commercial building collecting the valuable water runoff during rainy periods. For environmentally conscious households, the Handytank™ is a cost effective way to collect and save water. Roofs measuring as little as 1000 sq ft can collect up to 620 gallons of water. The harvested water is ideal for watering lawns or for washing cars, boats and driveways and is good for the environment. For greater capacity two or more Handytanks™ can be plumbed together by a short length of garden hose or simply install one at each down pipe.