have you considered dirt? or just having an engineer inspect it for safty, that would be easier and cheaper.
A cistern is usually an underground structure, but can be above ground which simply catches run-off water or rain water and keeps it until it is needed.
1. Man made? A cistern, or a well! 2. Natural? Underground lakes, rivers or springs! Ron
That's called an "aquifer" if it's naturally-occurring. But a "cistern" is a man-made with a waterproof lining. If it's a really big cistern, it's a "covered reservoir".
An underground tank for storing water. Rain water used to be collected and stored for use in the house. Still is in some places.
cis·tern [sístərn] (plural cis·terns) noun1.water tank: a tank for storing water, especially one connected to a toilet2.underground tank: an underground tank for storing rainwater*Cistern not "Cisternn"
reservoirs and water storage tanks and towers, typically
water is kept in a cistern
A cistern can be a wide range of shapes & sizes. Most commonly a cistern is round or rectangular.
The Arabic word for cistern is صهريج.
A tank that overflows. Cistern is an English name for tank.
What size cistern what temp
If you do not have a dual flush toilet, put a brick in the cistern