Another way that is used in combination with water, foam cleaners: suction hose pump mounted system (Around-the-Pump System) are installed to the side of the pump exit pipe. The foam will be absorbed into the percentage after sucking tube, a vacuum gauge, which is accurate, then the water will be discharged until the ratio that you want, and then fasten the foam and the water will be provided. Foam ingredients that have to be sent to the exit pipe of the pump, before flowing into the foam and spray nozzle out to cover fuel, respectively. The process of mixing the water with the foam is controlled strictly by the valve and the meter to get the correct ratio based on the selected type of foam cleaners.
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