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Troubleshooting Tips

  • All tips are based on the environment in Northeast Florida and are only recommended for quick fixes. In order to avoid further damage to the pump and/or equipment and to prevent human injury, all work should be done by a qualified professional.
  • Remember, many pump problems are caused by outside factors and are not limited to the the pump.

Priming a Shallow Well Jet Pump

Priming a Deep Well Jet Pump

Priming a Vertical Jet Pump

Freeze Protection

How To Replace a Ceramic Mechanical Seal

Priming a Shallow Well Jet Pump

CAUTION

  • Never run a pump dry. Doing so may cause the pump to overheat and damage the seal.
  • Never run a pump against a closed discharge.
  • Keep an eye out for why the pump might have lost it’s prime. More serious problems may be at hand.
  1. Remove the priming plug from the pump (or use the tee on the discharge) and fill the pump with water. Fill all piping between the pump and the source of the water.
  2. Once the pump and piping are filled with water, replace the plug.
  3. Start the pump. If you don’t have water after 2-3 minutes, stop the pump and return to step 1. This may take several attempts.
  4. When the pump catches it’s prime, let it build up pressure and shut off. Check the pressure switch by opening a faucet to run enough water so that the pressure bleeds down and the pump cuts on. Check that the pump reaches your desired cutoff pressure and shuts off.
  5. Let the pump run through several of these cycles. This helps clean the system of any dirt and scale that might have been dislodged during the installation.
  6. Pat self on back. Feel free to tell others and brag.

Priming a Deep Well Jet Pump

CAUTION

  • Never run a pump dry. Doing so may cause the pump to overheat and damage the seal.
  • Never run a pump against a closed discharge.
  • Keep an eye out for why the pump might have lost it’s prime. More serious problems may be at hand.
  1. Open the control valve as far as possible.
  2. Remove the priming plug from the pump (or use the tee on the discharge) and fill the pump with water. Fill all piping between the pump and the source of the water.
  3. Replace the plug and close the control valve.
  4. Start the pump and watch the pressure gauge. Pressure should rapidly build to 50 psi as the pump primes.
  5. After 2-3 minutes the gauge should show the pressure. If not return to Step 1.
  6. After pressure has stabilized at about 50 psi, slowly open the control valve until the pressure gauge needle starts to flutter. Then close the valve just enough to stop the needle fluttering. The pump is now operating at its most efficient point.
  7. Let the pump run through several complete cycles. This helps clean the system of any dirt and scale that might have been dislodged during the installation.
  8. Jump up and down. Brag to those who can only prime a Shallow Well Jet Pump.

Priming a Vertical Jet Pump

CAUTION

  • Never run a pump dry. Doing so may cause the pump to overheat and damage the seal.
  • Never run a pump against a closed discharge.
  • Keep an eye out for why the pump might have lost it’s prime. More serious problems may be at hand.
  1. Remove pressure gauge and close the regulator valve.
  2. Fill the pump and all the suction pipe with water.
  3. Wrap the gauge’s threads with Teflon tape and replace it.
  4. Start the pump and watch as the pressure should build up to 50 psi or more. If no pressure builds or no water flows, return to step 1.
  5. Rejoice!

Freeze Protection

  1. In case of a hard freeze, loosely blanket your pump so the heat from the motor will keep your pipes and pump from freezing. To prevent a fire hazard, you must keep the pump well ventilated while it is wrapped.
  2. Let your outside spigots trickle, so that the pump will continually run which will protect the pump from freezing.
  3. Let your pool pump run overnight in order to prevent freezing.
  • The important thing to remember is that the pump needs to continue running through the freeze and water needs to continue through the pipes so that neither the pump nor the pipes will freeze up.

How to Replace a Ceramic Mechanical Seal

  • The shaft seal has two parts. A stationary portion (white faced ceramic with black rubber seat. And a rotating portion (spring part with a shiny side and a rubber side)
    1. Remove the seal plate from your pump.
    2. Remove the old seal by flipping the seal plate over and pushing the old one out. Be sure you get the rubber portion of the seal as well as the ceramic part.
    3. Clean the area where the new seal will set. You may use Vaseline or non-lithium grease to install this portion. Only use a small amount and only put it on the rubber sides of the seal. Be careful not to get it on the face of the seal.
    4. Press the seal in place using the cardboard circle (found in the box) to cover the white face while putting in place. Should you get anything on the white face, wipe it clean before proceeding with rubbing alcohol and a clean paper towel.
    5. Reattach the seal plate to the pump.
    6. Take the other half of the seal and place it on the shaft.
    7. The two shiny sides (shiny white and shiny black) must marry one another. Putting the wrong sided together will immediately cause damage to your pump upon start up.
    8. Screw the impeller on hand tight.

Once you have reassembled the pump and re-primed it, check for leaks. If the seal is not seated properly, or if you have your o-ring/gasket pinched it will leak. Do not ignore a leaking seal. It will damage the motor bearings and potentially the whole pump. Motor manufactures do not cover water damage no matter the age of the motor.

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