The built-in pressure switch automatically stops the pump when you close the spray gun and restarts it when you open it, saving energy and wear If you hear a ticking sound, switch to a larger nozzle or more spray guns. Also, check for water leaks to prevent the pump from cycling on/off frequently The pump intelligently shuts off automatically when the outlet pressure reaches the preset maximum, and restarts when the pressure drops, ensuring smart protection Designed to provide stable water output and consistent pressure at 8 bar, good for reliable use with high-flow spray tips If the pump cycles on and off repeatedly with a ticking sound, it's a clear indicator to immediately check for and fix any water leaks in your system, Manufacturer: MMHHHG