Foam cleaning machine is used for professional car washes,hospitals,hotels,factories,etc... Foam cleaning machineModel: YS-P918Power: 0.75kwVoltage: ... the 1/2 ball valve of the foaming machine,fill with water to full level and add ... the barometer to 2-4kg. Evenly spray the foam on thearticle to be washed,then scrubing with ... us to know more details information!) Foam cleaning machine YS-P918