If the PVC ball valve leaks water because the handle is loose, you can clamp the handle with a vise, then rotate it counterclockwise, and tighten the handle. It should be noted that you need to be careful when tightening the handle, do not use too much force, otherwise the ball valve will easily be screwed. If the place where the PVC ball valve and the water pipe are connected is not tight and the seal is not well sealed and there is water leakage, you can wrap the raw material tape around the place where the water pipe and the ball valve are connected, and then install the ball valve after winding, so that there will be no water leakage. If the water leakage is caused by cracking or defect of the ball valve, the old ball valve needs to be disassembled, and then a new ball valve should be installed.
