
When the gun trigger is released, the valve opens and the water recirculates through the pump inlet. - Thermostat valve (D1) If the water temperature exceeds the temperature set by the manufacturer, the thermostat valve discharges the hot water and draws in an amount of cold water equal to the amount of water discharged. - Safety catch (D): prevents accidental spraying of water. 2.7 Noise levels At even short exposure times, noise may cause hearing impairment in the long term. Users must w