The most common reasons for a noisy pool pump can include: blocked lines, a blocked impeller, faulty bearings or unsecure mountings. These problems cause noises including: loud rattling, grinding, gurgling, whining, buzzing, high pitched noises and vibrations. Many pump noises can be fixed in just a few steps others may require a service call from a professional. While a noisy pool pump is certainly a pain, it’s fairly easy to troubleshoot . First locate the source of the sound—whether it be from the pump’s housing or the motor . It might be cavitation, internal blockage, improper mounting that causes vibrating or bad motor bearings. Even low water levels, clogged pipes, or cold water can cause pump noise. A pump run without sufficient water flow can actually “boil” the water inside the pump and melt the impeller.
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