Step 1: Check the pipeline. Check the water outlet position, main valve switch, washing machine position, toilet position, water heater position and the number of water pipes, check the use of water pipe joints and faucets, and close them. Step two, dissolve citric acid.

Connect the equipment to the water pipe and close the household facilities with water inlet function, for example, remove the water heater nozzle and connect it to the equipment. Pay attention to whether the water heater uses triangle valve when connecting. If triangle valve is used, remove it and connect it directly. Step 3, connect the side leakage pipeline. Set the air pressure, turn off all faucets, and use the leak detection function to detect whether the water pipe leaks. Press the leak detection button to fill the pipeline with gas. After the alarm sounds, keep it for 5 minutes and observe whether the value of the output parameter table continues to decrease. If it continues to decrease, it means that the water pipe leaks. After leak detection, slowly turn on the faucet farthest from the equipment to release the pressure in the pipeline. The fourth step is to pump bubbles. Turn on the faucet farthest from the equipment, turn on the faucet, turn on the liquid pumping function, turn on the faucet in turn to let lemonade in, and then turn off the faucet after all the faucets are finished. Wait a minute. Step 5, pulse cleaning (citric acid cleaning). Turn on the faucet farthest from the equipment, turn on the faucet, turn on the pulse function, rinse with citric acid and sewage (about one minute), turn on all the faucets in turn to make lemonade, and turn off the faucets after all the faucets are ready. Step 6, clean with clear water. Let tap water and clean water enter the pipeline. Turn on the tap and start the pulse cleaning function of the equipment. When the sewage discharged from the faucet becomes clean water, use the pause button to pause the equipment and turn off the faucet. Seventh, every step should be strictly controlled until the dirt on the inner wall of the water pipe is cleaned up. Restore all interfaces, test the outlets of all faucets, put away equipment and accessories, and carry out sanitary cleaning.