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Reinstalling your pool pump in spring

Updated : · Piscines VP

In spring, inspect the pump, put the drain plugs back, lubricate the O-rings, set it level on its base without touching anything, hand-tighten the fittings, fill the strainer with water, open the valves, bleed the filter and start it. Then listen: it's the best time to fix vibration.

In cold climates like Quebec, the pump spends winter indoors. Reinstalling it in spring is the best time to start the season right, and to fix a noise problem.

Before installing

  1. Inspect the pump housing: no cracks.
  2. Put the drain plugs back with their gaskets.
  3. Clean and lubricate the O-rings (lid, unions) with silicone pool lubricant.
  4. Check the base: did it move with frost? Is it still level?

Installation

  1. Set the pump level, not touching the wall, fence or filter.
  2. Connect suction and return. Hand-tighten the unions.
  3. Plug it into its dedicated outlet (never an extension cord).

First start

  1. Pool water level halfway up the skimmer.
  2. Fill the strainer with water and close it.
  3. Open the suction and return valves.
  4. Start and open the filter’s air relief valve until water comes out.
  5. Watch for bubbles and leaks for a few minutes.

If the pump won’t prime, see Pool pump won’t prime.

Listen

Once running, do the hand test. If the noise drops, it’s vibration, and now is the time to fix it before summer starts.

Piscines VP does pool openings in Laval and the Basses-Laurentides, Quebec.

Frequently asked questions

Should I lubricate the O-rings in spring?

Yes. After winter, O-rings are dry. A little silicone lubricant made for pools helps them seal. Don't use petroleum-based products, which make rubber swell.

My pump is louder than last year after reinstalling, why?

Often because it isn't sitting exactly like before: not level, resting on a pipe or wall, or on a surface that moved with frost. Do the hand test.

Not sure of the cause? Take the 2-question diagnosis →

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