How to Repair a Submersible Sump Pump by Repositioning the Float

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Submersible sump pump with tethered float.
Submersible sump pump with tethered float. (Image: Italian water pump. Isolated on white. image by diter from Fotolia.com)

A submersible sump pump employed to prevent basement flooding is triggered by a tethered plastic float, similar to that in a toilet tank. A cord connects the float to a float switch. As water fills the basin, the ball floats upward. When the water level reaches 12 inches, the cord trips the switch, triggering the pump. After the water lowers to two inches, the float switch stops the pump. The pump cannot work if an obstruction prevents the float from rising. Dirty water can cake the float with dirt, making it too heavy to rise properly.

Things You'll Need

  • Broom handle
  • Rubber band

Switch off the pump and unplug it.

Insert the broom handle into the water. Use it to see if the float is twisted or tangled up. If it is, you will need to get better access to free it.

Disconnect the discharge pipe.

Lift the pump out of the basin.

Disentangle the tether and float.

Shorten the tether a little, using a rubber band. It reduces the likelihood of it becoming tangled again.

References

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