Quick Answer
A backup pump for your cistern can be a valuable investment, especially if you rely on rainwater harvesting for your household water supply. It ensures a steady water flow, even during periods of drought or low rainfall. Consider the benefits of a backup pump.
Factors to Consider for a Backup Pump
When deciding on a backup pump for your cistern, consider factors like water demand, cistern size, and available head pressure. For a typical residential cistern with a storage capacity of 5,000 gallons, a pump rated around 2-3 horsepower (hp) should suffice. This will provide enough pressure to supply a single household with moderate water usage.
Choosing the Right Pump Type and Features
There are two primary types of pumps used for cistern water supply: submersible and jet pumps. Submersible pumps are more suitable for cisterns, as they can operate submerged in water, reducing the risk of airlock issues. When selecting a pump, consider features like automatic float switches, which can turn the pump on and off based on water level changes. A pump with a built-in pressure switch will also help maintain optimal water pressure.
Installation and Maintenance Considerations
To ensure a successful installation, it’s essential to follow local building codes and regulations. Consult a professional if you’re unsure about the installation process. Regular maintenance, such as cleaning the pump and checking the float switch, will also help extend the pump’s lifespan and prevent potential issues. Consider installing a pressure tank to stabilize water pressure and prevent sudden drops in pressure.
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