Tightly secure the lock nut washer and nut.
Toilet lock nut clockwise.
These are used in a toilet chiefly to secure the fill valve in the toilet tank.
The lock nut threads onto the fill valve inlet just above where the water supply hose or tube coupling attaches.
Remove the nut washer and lock nut.
Using various methods to remove the nuts and the bolts when the toilet bolt won t tighten gets your project back on track.
Empty the bucket and place it underneath the water supply line.
Step 3 replace the valve.
The end of the water supply line will come away from the connection.
Position the new valve in place of the faulty one.
Lock nuts are used to hold fixtures securely in place from below.
Some nuts have wings that you can grasp with your fingers.
I then would proceed counter clockwise with a second offset 6 pipe wrench and try to loosen the nut.
Use your pliers to loosen the nut under the tank.
Prepare the toilet turn the water supply shutoff valve clockwise to turn.
Locate the coupling nut on the underside of the toilet tank.
When you unscrew the screw the pliers will hit against the toilet bowl and prevent the nut from turning and it will loosen.
Raise the pipeline from the overflow tube.
To be honest before i grabbed the hack saw i would always set up a straight 6 pipe wrench inside the toilet tank and position it at the base of the fill valve with the handle up against the toilet tank.
The valve is connected to a rubber ball float.
If the nuts don t have wings lock a pair of locking pliers around each one in turn.
Gently pull the nut down.
Use a pair of pliers to just loosen the coupling nut.