Next, unscrew the large nut that holds the fill valve assembly to the bottom of the tank. If you hear the toilet running continuously, check the flapper chain length; it should have just enough slack to open fully without being so loose that it gets caught.
How to Tighten the Large Retaining Nut on Your Toilet Fill Valve
Place the new gasket or washer onto the new valve's base, then insert it into the tank opening from below. Flush the toilet once to empty the tank of remaining water, and use your sponge to soak up any residual water in the bottom of the tank and the bowl.
Locate the small shut-off valve on the wall behind the toilet and turn it clockwise until it stops. The water level in the tank should sit approximately one inch below the overflow tube.
How to Tighten the Large Retaining Nut on Your Toilet Fill Valve
Finally, perform a test flush to confirm the flapper seals properly and the tank empties efficiently. Slowly turn the shut-off valve back on to let the tank refill.
More About How to change a toilet valve
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More perspective on How to change a toilet valve can make the topic easier to follow by connecting earlier points with a few simple takeaways.
