Quick Answer
To purge air from a jet pump system, it's essential to operate the pump at the correct speed, usually around 2,000 to 2,500 RPM, and to use a proper priming method. This involves creating a vacuum in the system and filling it with water. Regular system maintenance and inspection can also help prevent air from entering the system.
Priming the System
Priming a jet pump system involves creating a vacuum and filling it with water. This process can be done manually by opening the suction valve and allowing air to escape, then quickly closing it to create a vacuum. The system should be primed at the pump itself, as this is the point where the vacuum is created. Use a priming kit or a submersible pump to create a vacuum in the system, then fill it with water by opening the suction valve.
Operating the Pump
To purge air from the system, operate the pump at the correct speed, usually around 2,000 to 2,500 RPM. This will help remove any air pockets and ensure the system is fully primed. If the pump is running at too low a speed, it may not be able to remove all the air from the system, leading to reduced performance and potential damage to the pump.
Regular Maintenance
Regular maintenance of the jet pump system is essential to prevent air from entering the system. Check the suction valve and piping for any signs of leaks or damage, and replace any worn or damaged parts promptly. Also, check the water level in the well to ensure it is at the correct level, as a low water level can cause air to enter the system.
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