This pump rod is long since it needs to reach where the water pipe is buried.
At the bottom end of the pump rod is aplungerwith a rubber washer or seal fitted to the end.
Since no water remains in the pipe, it cannot freeze and cause the pipe to rupture.
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Yard hydrant plunger replacement is a simple and quick repair to ensure your hydrant remains leak-free and prevents bursting.
There are many types of hydrants, and getting the exact replacement parts for your model is important.
Check with the manufacturer or shop for parts online or through a local plumbing supply house.
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There may be a shutoff valve directly on its water line.
Remove the Hydrant Head
Remove the hydrant head from the standpipe, using two pipewrenches.
The wrenches should face in opposite directions.
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Only loosen the setscrew or packing nut but do not remove them.
Remove the Pump Rod
Carefully pull up and remove the long pump rod from inside the standpipe.
load the new plunger and secure it with the screw.
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Do not use petroleum-based lubricants, which can damage the seal.
Tighten the head so it is snug and facing the desired direction.
Retighten the setscrew or packing nut, if applicable.
Turn the water back on and check for leaks.
Yard hydrants typically last several years before developing problems but all yard hydrants will eventually need to be replaced.
Servicing the hydrant with new parts when necessary will extend its life.
Flush a yard hydrant on an annual basis to maintain water quality.
If your hydrant is infrequently used, flush it about twice per year.
Several reasons could be causing the frost-free hydrant’s drain port to leak.
The plunger may be damaged, worn, or misaligned resulting in an improper seal.
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