Foam Brush

[tascosa]

My bay 1 foam brush works fine when that selection is made by user of bay 1, but when someone is using foam brush in another bay and bay 1 is idle, water and chemical come out of bay 1 foam brush. Any ideas what causes this? Thanks

 

[Randy]

There are a couple of things it could be. It could be the solenoid valve seat is worn or there is debris under the seat (soap scum comes to mind) If you have a weep system it could be you’ve got a bad check valve on the weep system that feeds weep water to bay 1. When another bay is turned on the bad check valve is allowing soap to leak by and go out to bay 1. I had that problem last winter