Soap in rinse water - ss carwash

[Tipsautospa]

I have a 5 bay SS wash. On one of the bays, I have soap in the rinse and spot free water. Would this be my soap valve letting water bleed by while rinse is running?. All help is much appreciated. I just don't want to tear into something without knowing that's the problem.

 

[Yeti55]

Soap solonoid .. if you don’t have a replacement on hand you can sometimes remove the spring , stretch it and put it back in temporarily

 

[Eric H]

This is almost always some junk stuck in the solenoid between the plunger and the seat.
Remove the coil, unscrew the stem and you can remove the plunger.
I’ve had some of the rubber seats on the plunger start to disintegrate after years of use.
A spare solenoid is a part that you want to have on hand anyway. A rebuild kit is also a good idea to have but if you have a small wash I’d just keep the spare solenoid.

 

[Tipsautospa]

Thanks to all for your replies. You have been very helpful and it is much appreciated. I have ordered the new solenoid and will be replacing it as soon as it comes in. Thanks again.

 

[Blanco]

Thanks to all for your replies. You have been very helpful and it is much appreciated. I have ordered the new solenoid and will be replacing it as soon as it comes in. Thanks again.

Did you try cleaning it like Eric H suggested?