Pool Pump Noise Reduction Tricks

A pool pump is one of the main components of your swimming pool, but sometimes the noise it makes when it is running can be inconvenient and hard to bear. However, there are different ways on how to reduce pool pump noise so that you can enjoy a peaceful swim.

What causes pool pump noise?

Before addressing the problem, it is important to understand what causes the pool pump noise in the first place. The noise you are hearing could be a result of any one of the following:

Due to vibration

Pool pumps are supposed to be bolted down to the concrete pad to protect it from movement, or even theft. It also stops vibration noise or chattering on the concrete. To know if the noise is due to vibration, try pressing down on the motor and pump to see if there is any sound change.

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Due to cavitation

Cavitation noise comes about when the pump is too large for the pipe size and/or the number of pipes bringing water to the pump, and is starved or receives less water than its desired intake. Other causes of pump cavitation noise are a clogged skimmer liner or impeller, closed suction valves or broken or full pump basket.

Due to worn bearings

When the lubricant inside the sealed bearing grows thin with time, or there are some changes in the ball bearings, they can start making noise. To test if this is where the noise is coming from, pull the motor from the pump and briefly turn on power to listen to the motor.

Noisy Pool Pump Fix

Sound dampening

To prevent pump vibration noise, bolt your pump to the concrete pad. Drill holes for the concrete pad and insert anchor bolts or concrete lags. You can also put a carpet remnant or a square of rubber under the pump base to dampen vibration, or put a box around it.

Sound deflection

Build a small wall between the pool and the pump to deflect and channel the sound to specific areas. Build three walls to direct the sound in one direction, and add a hinged roof for better results.

Reduce the sound

For cavitation sound, you add another incoming supply line or increase the suction lines diameter. Another way is to replace the pump motor and impeller with a smaller size or replace the whole pump with one that fits your circulation system.

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For squealing and screeching motor bearings, the solution is to either rebuild the motor, replace it or replace the pump. There are silent pool pumps like a variable speed pump that you should consider installing if you want a quiet pool pump.

Don’t let the pool pump noise ruin your peace when there is something you can do about it. With the above solutions, you can finally make your neighbors, and most importantly, yourself happy!