The valve core of the solar water supply valve is not tightly sealed. I have been trying to figure out how to repair it for a long time. It seems that you are talking about a problem with the mixing valve and internal water leakage. Otherwise, your solar installation is made up of several pipes. If it is just one pipe, can I understand that the water supply valve you are talking about is a solenoid valve? When the solar water supply is connected, there is a loud noise and the water cannot be connected. What is this? ...1. The sound when filling the water is caused by the vibration of your water pipe. You can install more pipe clamps to solve the problem. 2. The reason why the water cannot go up is because the exhaust hole of your solar water tank may be blocked and the air cannot be discharged. The accumulated gas in the water tank and the water pressure form a pressure balance, and no one can get up. You can clear the exhaust hole to solve the problem. . My solar panel makes a thumping sound when it is connected to the water supply, and the last time it came in... there is a serious lack of water pressure. The best solution is to understand the water situation in the area, stagger the peak water use period of the pipe network, and then supply solar energy. Sheung Shui.