Quick Answer
Locate your cistern near the center of your property, where natural water flow is most concentrated, such as at the base of a slope or near a natural water collection area. This spot should be higher than the surrounding terrain to ensure gravity-driven water flow into the cistern.
Understanding Topography and Water Flow
To optimize the location of your cistern for natural water flow, it’s essential to understand your property’s topography. Look for areas where water tends to collect and flow easily, such as at the base of slopes, near low-lying areas, or along natural waterways. These areas often have the highest concentration of water flow, making them ideal locations for your cistern.
Calculating Cistern Location Using Elevation
To determine the optimal elevation for your cistern, calculate the difference in elevation between the collection area and the cistern location. Aim for a minimum elevation difference of 1-2 feet to ensure gravity-driven water flow into the cistern. Use a level or a survey to measure the elevation of the collection area and the proposed cistern location. This will help you determine the feasibility of natural water flow and make adjustments accordingly.
Sizing Your Cistern for Optimal Water Flow
When sizing your cistern, consider the water flow rate into the cistern. A general rule of thumb is to size the cistern to hold at least 1,000 gallons of water, with a minimum of 1 gallon per minute (gpm) of water flow. This will provide a buffer against fluctuations in water flow and ensure a steady supply of water. However, if you’re expecting high water flow rates, consider increasing the cistern size accordingly to avoid overflowing.
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