Quick Answer
Increase suction lift in a jet pump setup by reducing pipe friction, increasing pump capacity, or using a larger diaphragm. Adding an air release valve can also help minimize airlock issues.
Minimizing Pipe Friction
To increase suction lift, start by reducing pipe friction. Use a minimum of 1.5-inch diameter pipes for suction and discharge lines. For every 100 feet of pipe, add 1/4-inch of pipe diameter to the suction line to maintain a velocity of 5-7 feet per second. This reduces pressure loss and allows the pump to pull water from a greater distance.
Pump Selection and Capacity
Next, ensure the jet pump is selected based on the well’s static level and flow requirements. A 1/2 horsepower pump can handle a 5-10 foot suction lift, while a 1 horsepower pump can handle up to 15 feet. Consider upgrading to a more powerful pump if you need to increase suction lift.
Additional Techniques and Components
Another technique is to use a larger diaphragm pump, which can handle a higher suction lift. Additionally, install an air release valve near the pump to release trapped air and minimize airlock issues. This allows the pump to maintain a vacuum and increase suction lift. Finally, ensure the well casing is properly sized and the pump is installed at the correct depth to maximize suction lift.
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