A float valve is a common type of toilets.The valve discharge valve consists of a tower in which a round plastic cup moves up and down. When the chain is pulled, the drop in the water level causes the cup to drop, letting the water flow into the tank. When the cup rises to the top, it will turn off the water. The main problem with the valves of the float cup is that the cup sticks, causing the water to run constantly. The repair of the float valve requires ensuring that the float cup moves smoothly in the tower.
American Standard 3121.016.178 Champion Elongated Seatless Toilet Bowl, Black (Bowl Only)
Instructions
1 Remove the lid of the toilet tank and put it out of the way.
2 Turn the shutoff valve on the floor next to the toilet all the way to the right to stop the water supply to the toilet. Pull the chain to remove most of the water in the tank.
3 Search for the float valve, which is on the left side of the toilet. Notice how the plastic cup is attached to the tower.
4 Apply plumber's grease with a cotton swab to the tower and the inside of the cup where the tower is inserted into it. Move the cup up and down the tower to work on the fat.
5 Turn on the shut-off valve for the water supply to the tank. Pull the chain several times to make sure the cup is working properly. Replace the tank lid.