How does a home water pressure tank work?

There are different kinds of water tanks- but mainly they are used to store water for human consumption- either for home use or commercial. , tanks can be used for various purposes: "above ground cisterns storing residential safe drinking water, rainwater harvesting, long term water storage,emergency potable water storage, fire protection water tanks & farm irrigation."

They come in various materials: plastic (polyethylene/polypropylene) which is probably the most popular as it is the least expensive yet most durable (does not rust or deteriorate), fiberglass, which is unaffected by chemicals, also stone, concrete, and steel.

They also come in various shapes and sizes, and can hold different amounts of water. Water tanks from about 5-10 gallons to up to nearly 1 million gallons. The type of water tank one should used is based on where they will be placed.

There are vertical, horizontal, free standing, flat bottom, low profile, portable, and bladder tanks. They can be round, rectangular, cylindrical, thin or thick, tall or short- depending on where they will be placed and what they will be used for.

http://www.tank-depot.com/browse.aspx?id=2 (Tank Depot carries water tanks in all shapes and sizes) There are also rain barrels and rain diverts that collect and filter rainwater for home and commercial use.

These water tanks and rain tanks contain an outlet to hook up piping from the tank to the home or building, using a valve and pump system. As the water fixture is activated (the sink turns on, the toilet flushes, etc) the pump releases air to push the water from the tank to the home or building's Plumbing.