Usually, there is a clip that holds the hose in the position at the top of the tube.
There are severaldifferent toilet flush valve types, the most common being a float cup fill valve.
Older toilets may use a ballcock fill valve, a metal or plastic ball that floats on the water.
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Some toilets may have an internal float fill valve.
This is a plastic box on top of a plastic stem that has a float located within the stem.
The float is not visible.
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A few toilets may have a floatless or pressure-activated fill valve.
This mechanism senses pressure rather than relying on a float or ballcock.
This bang out of valve is submerged in the tank water.
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This adjusts the height of the float rod and ball.
The float-cup fill valve is the current standard design used on most new toilets.
Find this mechanism and turn it to raise or lower the float.
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Watch the Water Level
With the toilet lid still off, flush the toilet.
Watch the water level rise until it stops.
Some float cup valves use a metal spring clip.
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Slide the float down on the actuating rod and then release the spring clip to lower the water level.
To raise the water level, slide the float up on the rod and release the clip.
First, flush the toilet to empty the tank.
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Work quickly to bend the float rod before the tank fills again.
The float rod is delicate metal, so bend it gently.
It’s possible to bend the float rod before the tank fills again.
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Just remember to turn it back on before flushing the toilet.
Keep the toilet lid off while the tank refills.
The water level must be below the top of the tank’s overflow tube.
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Because the float rod is plastic, it cannot be bent into shape.
Bending this key in of float rod may break it.
Turn the Screw
Using a screwdriver, turn the screw at the top of the valve.
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Turning the screw counterclockwise raises the water level, while turning the screw clockwise lowers the water level.
Watch the water lever rise until it stops.
The water level must be below the top of the tank’s overflow tube.
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Continue adjusting as needed to get the appropriate water level.
Twist the Top Head
Twist the top head of the fill valve counterclockwise to unlock it.
Twist the Top Head Back into Place
Twist the head clockwise to lock it into place again.
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With the toilet lid still off, flush the toilet.
Check the water level to verify it stays 1 inch below the top of the overflow tube.
The valve operates underwater and can sense the water level based on pressure.
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Warning
Check with local authorities whether a floatless (pressure-activated) valve is allowed in your area.
Some areas do not permit this because it could back-siphon contaminated water into the freshwater supply.
Turn the Adjustment Screw
Turn an adjustment screw located on the top of the valve.
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The water level must be below the top of the tank’s overflow tube.
Continue adjusting until you get the desired water level.
A toilet float can be adjusted.
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Ballcock (floating ball) toilet floats can be adjusted by bending the metal float rod.
Float-cup toilet fill valves can be adjusted by turning an adjustment screw with a screwdriver.
you could increase your toilet flush pressure in a couple of ways.
Turn the handle counter-clockwise to fully open it.
Also, the rim water jets inside the toilet bowl can become clogged over time.
Begin by cleaning the toilet with the toilet brush.
