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No Foam??


Aside from your high pressure pump stand, the foaming brush is probably the most critical function in your self serve arsenal. Although a rather simple setup, problems do arise from time to time. One of the most common problems is no foam at the bay. Every car wash has a different setup which makes it unique, but below are some things if it happens to appear that no foam is coming through in the bay.

Holding Tank – Start at the beginning. Make sure the hydrominder is mixing your chemical to the correct ratio. Check the metering tip for any blockage. Also, check the filter at the bottom of the holding tank to ensure it is free of buildup and debris.

Solenoid valves - Make sure you have proper operation from both your air and product solenoid valves. Valves can get clogged up over time and not open. You may need to take the valve apart and clean it or replace a bad plunger. Check the coil by holding a piece of metal up to it during operation. You should feel the magnetism when energized.

Pressures - Sometimes all that is needed for good foam is a minor adjustment at the regulator. Usually a few psi increase or decrease at the air regulator can positively affect the appearance in the bay. Your air to product psi should be around 20 (air) to 40 (product). You can always start at the bottom and adjust in increments of 5 psi until you find your perfect setting.

As always Prowash are here to help in any way we can. Please give us a call or send us an email if you have any questions or problems

Check out this great Prowash video on Self Serve Foam Brush Setting

Date Published: 12 September 2017