If the leakage persists proceed in the following manner.
Toilet shut off valve leaking at stem.
If the leak persists before replacing the entire valve try this.
You need to tighten the inlet of the toilet line in the shutoff valve.
Check the new valves for leaks.
Hopefully this is enough to compress the rubber gasket so that it is sealed on the valve stem to prevent water leaks.
Then open the water main shutoff valve and let the water run until all the air is out of the pipes.
Turn on the water supply and inspect for leaks.
Get a hold of the shut off valve and begin to take it apart.
Take out the screw from the handle of the valve and untwist the packing nut.
Turn the water heater gas valve back to on or flip on the circuit breakers to the electric water heater.
Do not remove the valve just tighten the packing nut.
Support see jane dri.
Close the new valve.
Over time a worn or out of alignment fill valve can become a problem cause a leak and wear on valve s components and parts.
Place a bucket or a thick towel on the floor under the leaky valve just in case some residual water leaks out during work.
There s an easy way to fix it and you may want to give it a try.
Start by disconnecting the water line from the valve.
If your fill valve leaks or if water continues to run after you flush it may be time to replace the fill valve.
Turn on all the faucets and flush all the toilets associated with the main shutoff valve to empty the pipes of water.
For a leaky toilet water shut off valve the easiest solution is to tighten the package nut 1 4 turn with a wrench.
Then shut off the upper and lower faucets.
Replace the washer and secure the valve stem and packing nut.
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.
Next shut off the main water supply to the toilet and detach and drain the pipes using a wrench or pliers.
Now i have to fix the shut off valve before i can even attempt to replace the fill valve.
Step 3 tighten shut off valve water supply line.
If your water supply valve is leaking you may not need to replace it.
Step 3 remove the nut.
Unscrew the handle the packing nut and the threaded valve stem photo 2.
The fill valve is the part of the toilet that is responsible for refilling the tank after being flushed.