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Motor air cavity removal: blue domestic water pump connected to black pipes
Plumber30-day warranty included

Motor air cavity removal

Takes about 30 min

If your motor is running and humming but no water reaches the tank, air is often trapped in the pump or the suction pipe. A verified plumber switches the motor off, opens the priming plug, fills the pump and suction line with water to push the air out, then checks the suction joints and foot valve for the leak that let air in.

The visit takes about 30 minutes, at the fixed price shown on this page. Running a motor dry can damage it, so switch it off if no water is coming. If the foot valve or a suction joint is faulty, the repair or part is quoted before work starts. Keep a bucket of water ready near the motor.

What's included

  • Motor switched off and priming plug opened
  • Pump and suction line filled to push out air
  • Suction joints checked for air leaks
  • Foot valve checked where it can be reached
  • Run test until water reaches the tank

What's not included

  • A new foot valve or pipe, quoted before fitting
  • Motor winding, capacitor or electrical faults
  • Borewell and submersible pumps

How the visit goes

  1. 1

    Stop the motor

    The motor is switched off so it does not run dry while the plumber works.

  2. 2

    Fill and bleed

    The priming plug is opened and water is poured in until the air bubbles out.

  3. 3

    Find the air leak

    Suction joints and the foot valve are checked, since air got in somewhere.

  4. 4

    Run and confirm

    The motor is restarted and run until steady water reaches the tank.

What we need from you

  • Motor switched off if it runs without lifting water
  • A bucket of water near the motor
  • Access to the sump or suction pipe

Questions about this service

Why does my motor keep getting air locked?

Usually a leaking suction joint or a worn foot valve lets air in. The plumber checks both after clearing the lock.

Is it safe to keep running the motor?

No. Running dry can overheat and damage the pump. Switch it off until the air is cleared.

What if the motor still does not lift water?

If the pipes are sound, the fault may be electrical or inside the motor, which needs a motor mechanic.

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