Purpose of Water Tanks in Houses

Water tanks in houses help store water either as a primary source of water or as a backup. The water tanks also provide water to a house or other building's plumbing system.


The purpose of having a water tank in the house is to provide a necessary component of a well or pump water system. The water tank contains water drawn from the well and distributes it throughout the home plumbing system.


A water pressure tank helps to distribute water throughout the home. Water pressure tanks use air pressure to force the water out of the tank and through the pipes. Water storage tanks serve only as a place to store large quantities of well or rain water for future use.


Water tanks often use a pump to aid in distributing the water and to create air pressure in the tank. You can monitor air and water pressure with a pressure control switch.

About the Author

Usha Dadighat has been writing since 2008. She earned a Bachelor of Science in computer science and a minor in psychology from the Missouri University of Science and Technology in December 2010. She currently works as a software development engineer and has extensive technical writing experience.