Kest, The link that Art provided has good information, but it did not mention a plastic cistern option. I recommend that you puchase a 1200 gallon tank or perhaps a 1700 gallon tank to extend as much a possible the water hauling frequency. It is not necessary to bury the tanks even if they are rated for underground use (UG). The tanks are rotationally molded so there are no seams to leak, and the resin used in their manufacture produces “Food Grade Plastic.” http://www.chemtainer.com/watertanks/water.aspx
Another option is to use a bladder type reservoir. The flexible plastic fabric bladders can be obtained in capacities of 500 gallons to 250,000 gallons. http://www.interstateproducts.com/pillow_tanks.htm
Most of the water hauling services in this area of Colorado will deliver up to 2000 gallons per trip. If you plan to have water delivered then I recommend 2000 gallons of reservoir capacity. If you plan to haul water in a small plastic “Pick up” tank then the gallons per trip will be controlled by the weight capacity of your truck. Caution: The shifing water in an unbaffled water tank can cause your truck to lay over its side when going around a curve. The weight of the load will shift quickly resulting in irrigating the roadway.
» This message has been edited by John Aldrich on 12 February 2005