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| A ballcock basically is a toilet's only mechanical part.
It has a number of moving components that can wear out or
break. When that happens, you'll need to replace the
ballcock. It's not a difficult job. There are several
types of ballcocks – plunger-valve, diaphragm, float-cup,
and floatless. They all use similar steps and methods for
replacement. |
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 Shut off the
water and flush the toilet to empty the tank. From
underneath the tank, place a bucket under the retaining
nut, then remove the ballcock retaining nut with an
adjustable wrench and take out the old ballcock assembly. |
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 Attach a new
cone washer to the new ballcock tailpiece and insert the
tailpiece into the tank opening. |
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 Align the
float arm socket so that the float arm will pass behind
the overflow pipe. Screw the float arm onto the ballcock.
Screw the float ball onto the float arm. |
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 Bend or clip
the refill tube so that the tip is inside the overflow
pipe. |
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 Screw the
mounting nut and the supply-type coupling nut onto the ballcock tailpiece and tighten the nut with an adjustable
wrench. Turn on the water and check for leaks. Note: over-
tightening the nut can crack the toilet tank. |
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 Adjust the
water level in the tank so it is about 1/2 inch below the
top of the overflow pipe, or align with the "full" line
inside the tank. |
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RELATED PROJECTS
Installing a New Flush
Valve
Fixing a Leaky Floatcup
Assembly
Making Minor Adjustments
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