Pet wash not drawing soap

[jaudas]

Good evening- thought I would post it here to see if anyone has any ideas. All are appreciated.
My pet wash is not drawing soap. I have cleaned the injector and solenoids. It seems the solenoid actuated, as i can feel the magnetism on it, plus the water is running backwards into my soap container, so I can tell it is open. I have replaced the injector and foot valves.
Yet, it creates no suction to draw out the soap.
Any thoughts would be greatly appreciated!

 

[Keno]

Most likely a restriction down stream of the injector

 

[Islandwash]

an injector depends on the water pressure at the Dema injector to draw the chemical consistently, check that. Possibly the Solenoid valve is too small

 

[jaudas]

Most likely a restriction down stream of the injector

So leading into the injector? That is where I am leading towards. Thanks!

 

[jaudas]

an injector depends on the water pressure at the Dema injector to draw the chemical consistently, check that. Possibly the Solenoid valve is too small

I think it is the injector. The solenoids are the standard setup, and the same at my last wash, so I would and hope that is right. I will work on the injector. Thanks

 

[Keno]

So leading into the injector? That is where I am leading towards. Thanks!

I meant after the injector, could be both if you haven't checked flow and pressure to the injector also