Soap in High Pressure Rinse-Help!

[rexdarby]

How do I fix this problem----After the high pressure rinse runs for about 30sec. the water starts getting a little soapy, clears up and then soapy again.

 

[Jeff_L]

Possible bad solenoid valve? Have you replaced it? Could be flaky where the valve is bouncing up and down allowing the soap to be injected.

 

[Mr Frank]

Could something be back flowing through your worn out pump head seals etc.
I think this happened once to us on a CAT 310 pump.
I think the low pressure soaps pushed the fluids backwards into the tanks.

 

[jjw]

Is your system drawing from a resevor with a float valve? Does your system have check valves at the boom or in the mechanical room? Do you have dema valves controling your soap supply? Sounds like design problem maybe. Presoak may be clearing out of your manifold when you turn on the rinse cycle, if its in line a distance from your wand it may take a few seconds to clear. If its in all bays and your drawing from a central tank for cold rinse might be but not likely. Probably just a dema valve with a bit of "stuff" under the seat. Hit it with a small hammer or disassemble, flush and clean. Have a great day! jjw