Can Multiple Cisterns Improve Water Security on Your Property?

Benefits of Multiple Cisterns

Having multiple cisterns can improve water security by distributing the water storage across different locations, reducing the impact of a single cistern failure due to natural disasters or equipment failures. For example, a 10,000-gallon cistern can collect and store rainwater from a 2,000 square foot roof, while a smaller 2,000-gallon cistern can collect from a 400 square foot area. By installing multiple cisterns, you can increase the total water storage capacity and create a more resilient water supply system.

Cistern Sizing and Capacity

When sizing multiple cisterns, it’s essential to consider the roof area and rainfall collection rates. A good rule of thumb is to use cisterns that are sized between 10-20% of the total roof area. For example, a 2,000 square foot roof would require a 200-400 gallon cistern, while a 10,000 square foot roof would require a 1,000-2,000 gallon cistern. It’s also crucial to consider the water demand of the property and the desired storage capacity to ensure that the cisterns are sized correctly.

Installation and Maintenance Considerations

When installing multiple cisterns, consider the layout and spacing of the cisterns to optimize water collection and distribution. It’s also essential to ensure that the cisterns are properly sized and installed to prevent overflows and contamination. Regular maintenance, such as cleaning and inspecting the cisterns, is crucial to maintaining the integrity of the water supply system and preventing the growth of algae and other microorganisms.