Turn the water off at the home's main shut-off valve. Attempt to open and close the valve by turning its handle several times by hand. Squirt lubricating spray where the valve handle enters into the valve, and wait 20 minutes. Attempt to turn the valve handle again, by hand. If it i...
Check for water flow: After closing the valve, turn on the faucet to see if the water supply has been successfully shut off. If no water comes out, then the water supply has been properly turned off. It is important to note that in some cases, the shut-off valve may not completely ...