A water tank is a container for storing water. Water tanks are used 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.A properly maintained rainwater tank can provide good quality drinking water. Providing the rainwater is clear, has little taste or smell and is from a well maintained water catchment system it is probably safe and unlikely to cause any illness for most users.
The five most common water tank materials are plastic, sheet steel (Aquaplate Colorbond or galvanised), stainless steel, concrete and fibreglass. If you highly value aesthetics, then your choice of tank will depend on your personal preference and how the tank should integrate into the site.