help with triple foam.

[travler]

Need help, one of my bays triple foam is backing up in the air line coming out of the regulator any help is appreciated.

thanks

 

[MEP001]

Set the air pressure as high as the liquid and that will never be a problem.

There might be something clogged.

 

[ICEMAN]

you should have a check valve on your air line. In triple foam systems the liquid pressure is usually set higher than the air, so the liquid backs up the air line. If you are using poly tube John Guest makes a nice check valve. It can be bought at any of the catalog houses.

 

[MEP001]

There's no reason for the liquid pressure to be higher than the air, and because of that there's no reason to have a check valve on the air line.

 

[ICEMAN]

i have always set air around 15 psi and liquid around 30 psi at all my washes. I use jbs glow foam and it seems to work good at those settings. If i set my air and liquid the same, it would sputter way to much. I would think every system is a little different depending on soap dilution, water quality, etc. If your product in the bay is too much water , turn up your air, if it is sputtering turn down the air.

 

[travler]

help with triple foam

I wanted to ad that the problem is only with 1 bay out of 6
thanks travler

 

[cantbreak80]

I'd suspect a failed check valve for the air line for that bay. Depending on the system, the cv could be at the solenoid outlet, at the air line fitting on the 'foamer manifold', or somewhere on the air line.

Every system I've seen uses less air pressure than liquid pressure. A failed cv allows liquid to over-power the air pressure resulting in what you are experiencing.

 

[MEP001]

I suppose if there aren't separate needle valves for air and liquid then you'd need to set the air pressure lower, but I've never seen one without adjustments.

 

[travler]

thanks for all the help will let you know how i make out .