What is a Cistern?
A cistern is a large container or reservoir used to store water, typically rainwater, for later use. Cisterns can be located above or below ground and are often used in areas where water is scarce or unreliable, or as a way to conserve water.
Key Features of a Cistern:
- Water Collection: Cisterns are commonly used to collect and store rainwater, which is gathered from roofs or other catchment areas and directed into the cistern through gutters and pipes.
- Storage Capacity: Cisterns can range in size from small tanks that hold a few hundred gallons to large underground reservoirs capable of holding thousands of gallons of water.
- Material: Cisterns can be made of various materials, including concrete, plastic, metal, or fiberglass, depending on their size, location, and intended use.
- Use:
- Non-potable water: The water collected in a cistern is typically used for non-drinking purposes, such as irrigation, flushing toilets, laundry, or firefighting.
- Potable water: In some cases, cisterns can store potable water (drinkable water), but this usually requires proper filtration and treatment systems to ensure water quality.
- Location:
- Above-ground: Easier to install and maintain but can be less efficient at temperature control.
- Underground: Often used for larger capacities, hidden from view, and better at keeping the water cool, which can reduce the growth of algae or bacteria.
- Pump System: Cisterns often have pumps to distribute the stored water for use, especially if they are located underground.
Common Uses of Cisterns:
- Rainwater Harvesting: Collecting and storing rainwater for later use in irrigation or household applications.
- Emergency Water Supply: In areas where municipal water supplies are unreliable, cisterns can serve as backup water storage.
- Sustainable Water Management: Cisterns are commonly used in off-grid homes, farms, or locations with strict water conservation efforts.
Cisterns are an ancient water storage method but are still widely used today, particularly in regions where water resources are limited or where rainwater harvesting is encouraged for sustainability.
