A minimum storage capacity of 5000 gallons is recommended for domestic cisterns. This capacity should eliminate having to buy or haul water, a practice that is not only inconvenient but can become somewhat costly.Jun 2, 2016
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.