The small water valve that supplies water to a toilet commonly called a stop valve has only a few moving parts but over time mineral deposits from the water or deterioration of the internal gaskets can cause the valve to fail.
Turn off water toilet no valve.
To close the main shutoff valve turn the valve lever clockwise one quarter turn until the handle is perpendicular to the water pipe.
Open the water main in the house then loosen the toilet shut off valve by turning it counterclockwise.
Hopefully this is enough to compress the rubber gasket so that it is sealed on the valve stem to prevent water leaks.
If the leak persists before replacing the entire valve try this.
Unscrew the handle the packing nut and the threaded valve stem photo 2.
Turning the valve clockwise as far as it can go will turn off the water supply to the toilet.
If the valve has a round handle turn it clockwise until it stops.
If the water valve looks rusty or is difficult to turn try applying some wd 40 to it.
As the water begins filling the toilet s tank check for leaks around the new valve.
Turn off the water at the house s main shutoff then disassemble the problematic shutoff valve without disconnecting the valve from either the water supply line or the line leading to the toilet.
Find shut off valves at lowe s today.
1 turn off the main water.
The main water shut off valve stops the flow to the entire home from the water meter while other water valve types shut off the water at individual appliances fixtures and faucets.
The valve should not be difficult to turn so don t try to force it if you can t easily turn it.
For a leaky toilet water shut off valve the easiest solution is to tighten the package nut 1 4 turn with a wrench.
Residential plumbing systems can contain several different types of water shut off valves that control water flow.
Do not remove the valve just tighten the packing nut.