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laser 4000 no second soap

Bullfrog

New member
My issue is the second soap does not come out of the nozzles during the wash. The pump comes on, but nothing goes on the car. I have replaced the solenoid valve, the injector, the foot valve and the check valve on the tree above the pump station with no change in the outcome. However, when I turn the soap on manually from the computer, it operates as it should. Any help is appreciated.
 
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