Foam brush system

[Tall City Carwash]

Our carbonate pump is only producing 10-15 psi for our foam brush. Before I replace the motor, pump and pressure switch, is there a better system for delivering foam to the bays?

 

[Tall City Carwash]

Our carbonate pump is only producing 10-15 psi for our foam brush. Before I replace the motor, pump and pressure switch, is there a better system for delivering foam to the bays?

Also, if I do replace the vain pump what you rating would give me the 40 psi I need at the solenoid?