Quick Answer
For high-temperature locations, the best cistern types are polyethylene or fiberglass cisterns with a dark interior to absorb heat, but also consider steel cisterns with a reflective interior for better temperature regulation. These types of cisterns minimize heat gain and reduce the risk of algae growth. Consider a cistern size of 500-1000 gallons for most residential needs.
Cistern Materials: Understanding the Options
When selecting a cistern for high-temperature locations, the choice of material is crucial. Polyethylene cisterns are a popular choice due to their durability, chemical resistance, and affordability. They can withstand extreme temperatures and are resistant to corrosion. Fiberglass cisterns are another option, offering a higher strength-to-weight ratio and resistance to cracking.
Cistern Size and Sizing Considerations
The ideal cistern size depends on several factors, including household size, water usage, and climate. As a general rule, a cistern size of 500-1000 gallons is sufficient for most residential needs, providing enough storage for rainwater harvesting and reducing the risk of water scarcity during dry periods. When sizing a cistern, consider the roof catchment area, rainfall intensity, and evaporation rates specific to your location.
Cistern Maintenance and Protection
To ensure the longevity of your cistern, regular maintenance is essential. This includes inspecting the cistern for signs of damage, cleaning the interior, and applying a protective coating to prevent algae growth. Additionally, consider installing a first flush device to divert debris and contaminants from the roof during the initial flow of water into the cistern.
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