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How Do You Drain a Water Pump?

Published in Water Pump Maintenance 2 mins read

Draining a water pump typically involves allowing air into the pump and then opening a drain to release the water. Here's a breakdown of the process:

Steps to Drain a Water Pump:

  1. Allow Air to Enter the Pump: Locate and remove the drain plug (or vent plug) usually found on the top or side of the pump casing. Alternatively, if the pump is connected to a system with a faucet, opening that faucet can also allow air into the system. Allowing air into the pump breaks the vacuum and allows the water to drain freely.

  2. Locate the Drain Plug: Find the drain plug located on the bottom of the pump casing. This is the outlet through which the water will exit.

  3. Remove the Drain Plug: Carefully remove the drain plug on the bottom of the pump casing. Have a container ready to catch the draining water.

  4. Allow Water to Drain Completely: Let all the water drain out of the pump. Depending on the pump size and remaining water, this could take several minutes.

Important Considerations:

  • Safety: Ensure the pump is disconnected from its power source before beginning any maintenance, including draining.
  • Location: Perform the draining process in an area where spilled water won't cause damage or create a hazard.
  • Freezing Temperatures: Draining a water pump is especially important in areas with freezing temperatures to prevent damage to the pump due to expanding ice.
  • Specific Models: The location of drain plugs may vary slightly depending on the specific water pump model. Consult your pump's manual for specific instructions. If you can’t find the manual, search online for your pump’s make and model number, followed by the word "manual" (e.g., "XYZ Water Pump Model 1234 manual").
  • Debris: When re-installing the drain plugs, inspect them for any debris or damage. Clean or replace as necessary to ensure a proper seal.
  • Priming: After draining and before re-using the pump, you'll likely need to prime it by adding water to the pump casing to help it regain suction. Again, refer to your pump's manual for specific priming instructions.