Quick Answer
The daily water requirement for a household or homestead varies depending on factors like climate, population, and water usage efficiency, but a general estimate is 50-100 gallons per person per day.
Determining Daily Water Needs
When sizing a submersible pump for a deep well, it’s essential to consider the household’s daily water needs. A good rule of thumb is to calculate the total daily water requirement for each person in the household, including guests and livestock. For example, a family of four might require 200-400 gallons per day for drinking, cooking, and hygiene. To account for unexpected water usage, it’s recommended to add 10-20% to the total daily requirement.
Calculating GPM Requirements
To determine the required gallons per minute (GPM) for a submersible pump, divide the total daily water requirement by the number of hours the pump will operate per day. For instance, if the household requires 250 gallons per day and the pump will operate for 12 hours, the required GPM would be 250 gallons / 12 hours = 20.83 GPM. It’s also essential to consider the pump’s efficiency and the well’s yield when selecting a suitable submersible pump.
Sizing the Submersible Pump
When sizing a submersible pump, consider the pump’s flow rate, head, and power requirements. A general rule of thumb is to select a pump that can deliver at least 1.5 times the required GPM to account for variations in water demand and pump efficiency. Additionally, ensure the pump is compatible with the well’s depth and yield, and that the motor power is sufficient to handle the required flow rate.
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