Download this pdf as i required for estimate of water tank. Also, it will help to enhnace basic thumb rule of water tank.

A water tank is a container for storing liquid. The need for a water tank is as old as civilization, to provide storage of water for use in many applications, drinking water, irrigation agriculture, fire suppression, agricultural farming, both for plants and livestock, chemical manufacturing, food preparation as well as many other uses. Water tank parameters include the general design of the tank, and choice of construction materials, linings. Various materials are used for making a water tank: plastics (polyethylene, polypropylene), fiberglass, concrete, stone, steel (welded or bolted, carbon, or stainless). Earthen pots also function as water storages. Water tanks are an efficient way to help developing countries to store clean water.

Rectangle Plastic Tanks by Ronco Plastics are great for marine boat tanks, rv tanks, storage tanks, ballast tanks & more.

Why Ronco Tanks are #1
3/8" wall thickness
FDA approved polyethylene
Completely enclosed blank tanks
Tank dimensions can rotate to your needs
Fittings will be installed per your request