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Pulsing flojet

Noob

Active member
My wash is shut down due to cold weather. I stopped by today just to check on things and my flojet for the FB is periodically pulsing. Does this mean one of my solenoids is leaking or hung open?
 

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You will see something running in the bay if it's a solenoid. If you don't, it's the pump failing or it has trash in the valves.
 
What you could do is install a ¼” solenoid valve on the air line going to the Flo-Jet pump and build a relay bank to control the solenoid valve. For a 4 bay car wash a relay bank would be simple to build.
 
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