This valve is the substitute of the traditional float ballcock, which can be applied to various application like high water tanks, pools, water towers of the industry and civil construction, etc Automatic control, low self-complementary water, water full automatic stop Beautiful appearance, small size, practical, simple installation Without electricity, easy to use, long life, low failure rate, saving water resources Please do not buy this product if you getting low pressure water. PAY ATTENTION : 1.Water pressure: 0.2kg & C 10kg 2.This product should be installed vertically on the horizontal plane 3.This product belongs to the level control valve, the float must be vertical downward,when is installation 4.Fix the inlet pipe on the horizontal surface at first, a. then connect the valve with the inlet pipe according to its sim.The Inlet pipe should be shitable for the float val. 5.globe valves should be open..fore use the float valve 6. If two valves are installed in the same watertank, they should be kept on the same horizontal surface. 7. Be sure to clean the pipe before installing and using the valve 8. When the flaot valve is working, the bottom will leak, which is a normal phenomenon.