Quick Answer
Protect cistern water quality by implementing a secure cover, regular cleaning, and maintaining a 3-4 foot clearance around the cistern to prevent contamination from external elements. Use a sedimentation tank and a UV filter to treat water before storage. Install a cistern riser to prevent rainwater from entering the cistern.
Preventing Contamination
When it comes to protecting cistern water quality, preventing contamination from external elements is crucial. A secure cover made of durable materials such as aluminum or polypropylene should be installed to prevent debris, animals, and other contaminants from entering the cistern. Regular cleaning of the cover and surrounding area is also essential to maintain water quality. A 3-4 foot clearance around the cistern should be maintained to prevent contamination from nearby sources such as animal enclosures or fertilized gardens.
Water Treatment and Filtration
To ensure the water stored in the cistern is safe for consumption, a sedimentation tank and a UV filter should be installed. The sedimentation tank will remove any particulate matter and sediments from the water, while the UV filter will kill any bacteria, viruses, or other microorganisms that may be present. The sedimentation tank should be sized to handle a flow rate of at least 1 gallon per minute for every 100 square feet of roof catchment area.
Cistern Design and Installation
Proper cistern design and installation are also essential to maintaining water quality. A cistern riser should be installed to prevent rainwater from entering the cistern, which can lead to contamination. The cistern should be positioned at least 10 feet away from any potential sources of contamination, such as animal enclosures or fertilized gardens. Additionally, the cistern should be sized to meet the water demands of the household or business, with a minimum capacity of 1,000 gallons.
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