What Is a Cistern?

A cistern is a waterproof receptacle for holding liquids, usually water. Cisterns are often built to catch and store rainwater. Cisterns are distinguished from wells by their waterproof linings. Modern cisterns range in capacity from a few litres to thousands of cubic metres, effectively forming covered reservoirs.

Why would a house have a cistern?

Cisterns are stone wells that are often found in older houses or landscaping. A cistern is designed to act as a water reservoir, holding the water until it's needed. ... An older cistern may be used decoratively or covered up.

Can you drink water from a cistern?

​​Cisterns are watertight containers to protect and store drinking water. In some circumstances, the water from a cistern may not be safe to drink. If cistern collars, lids, fill ports, or screened vents are damaged, germs (contaminants) may get in.