What's new
By:
Car Wash Forum

This is a sample guest message. Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

water back feeding into wash soap

Etowah
D

Don Sexstone

Member
Hello,
I have a problem with water back feeling into my high pressure wash soap in all three of my bays ? I have attached a couple of pictures for reference. I find it hard to believe all three pump seals are bad, I cannot for the life of me figure this out. I have only owned it for about 4 yrs and have never had a problem. thank you for your time.
 

Attachments

  • IMG_6268.jpg
    IMG_6268.jpg
    460.9 KB · Views: 47
  • IMG_6269.jpg
    IMG_6269.jpg
    553.1 KB · Views: 47
Have you taken apart the soap solenoid valves, checking for debris? It could be a check valve that's coming off the bypass line that has debris in it. But I find it odd that all the bays are doing it unless you have a lot of debris in your soap tank.
 
Randy said:
Have you taken apart the soap solenoid valves, checking for debris? It could be a check valve that's coming off the bypass line that has debris in it. But I find it odd that all the bays are doing it unless you have a lot of debris in your soap tank.
Click to expand...
I totally drained my tank and tried again.... the soap draws from the tank fine its the water coming from the pump .....all the bays suddenly doing it is the stumper !
 
Solenoids don't have any way to stop flow in the reverse direction. I know that the two solenoids side by side are soap and wax, I assume the third one is cold water rinse. Does water come out the soap line all the time or only when the pump is running? "All the bays doing it" means what exactly, when you remove the soap line water comes out the barb? Does water come out only on one bay and only when rinse is selected but when you select soap with that line off the barb the pressure drops almost to nothing? If the last one best fits, the check valve inline after the solenoids is bad.

Kleen-Rite 944-430 | Brass Inline Check Valve | 1/2in. F x F

This resilient disc check valve is not lead free. It is not for use on potable applications.
www.kleen-ritecorp.com www.kleen-ritecorp.com

If you don't run hot water, just shut off the supply to the rinse solenoid.
 
You must log in or register to reply here.
Back
Top