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< Pool & Spa Guides

Repairing Pool Equipment

Equipment refers to your heavy-duty gear that enables the pool to function, such as a pump and filter. Pool heaters also fall into this category, but they are not required to power the pool.

Pumps come in three main types: single-speed, two-speed and variable-speed. All three types exhibit similar symptoms when faulty. The most common include:

  • Pump is making loud screeching noise, or sounds full of rocks
  • Pump is leaking water
  • Pump basket does not fill with water
  • Pump is making humming noise and failing to start
  • Pump is sucking air
  • Pump motor is not working, or turning itself off during use
  • Pump flow rate is too low

For a more detailed explanation on what to do in each scenario, please see the end of the article.

The other type of pool equipment is filters. Filters also come in three main types: cartridge, D.E (diatomaceous earth) and sand. And, like pumps, the various types encounter similar issues. The most common types of filter issues include:

  • Damaged or worn spider gasket
  • Sand or D.E powder flowing into the pool
  • Worn and torn grids (D.E filters)
  • Excessive pressure build up inside the tank
  • Low pressure caused by blockage
  • Cartridges or grids need replacing

For a more detailed explanation on what to do in each scenario, please see the end of the article.

When repairing pool equipment, we always recommend consulting a local pool professional, who will be able to assist. Try our Dealer Locator – found on the Find a Dealer page – to find and contact a pool professional near you.

Pump repairs:

Pump is making loud screeching noise, or sounds full of rocks

If your pool pump is causing a screeching noise, it could be caused by worn bearings. You can change the bearings out, but many pool owners opt to switch out the older motor for a new one. If your pump sounds like it’s full of rocks, it may not be getting enough water - check your suction lines and skimmers.

Pump is leaking water

Usually caused by a pressure-side leak - easily fixed by checking impeller housing o-ring and shaft seal for wear and tear; replacing if needed.

Pump basket does not fill with water

If your pump basket fails to fill up with water, you’ll need to prime your pump. This is an easy fix - search for a pump priming guide online.

Pump is making humming noise and failing to start

In either case, check your impeller for debris build-up. Debris can obstruct the impeller and disable the pump.

Pump is sucking air

Pumps need to be air-tight to operate - any leak will cause your pump to suck air. Firstly, check your pump lid, which may be loose. Next, check all plumbing, valves, o-rings and gaskets for cracks, leaks and wear and tear; replacing if needed.

Pump motor is not working, or turning itself off during use

In either case, check to make sure your pump is receiving power, also checking your timer to double check. If the pump is on and you hear a humming noise, you may have a bad capacitor. If your pump is old, you may need to replace the motor. If none of the above, your pump could be overheating - check the vents and remove any obstructions.

Pump flow rate is too low

In most cases of lower flow rates, it is usually caused by blockage. Check your basket and impeller for debris that could be blocking water-flow.

Filter repairs:

Damaged or worn spider gasket

Within the multi-port valve on sand and D.E filters is the spider gasket (resembling a spider web). If this is damaged or worn, it can be the cause of many headaches. Inspect it and see whether it needs replacing.

Sand or D.E powder flowing into the pool

If you are noticing sand in your pool, you likely have a damaged lateral or broken standpipe. Check both and determine whether you need replacements. In D.E filters, this occurs due to worn grids that have developed tears, check the grids and standpipe o-ring for wear and replace if needed.

Excessive pressure build up inside the tank

If your pump is too big for your filter, it can push more litres per minute through the filter than it is designed to handle, which can damage the filter. Another cause is clogged filter cartridges, or a build up of sand or D.E that needs backwashing. If none of that works, you may be dealing with a clog in the plumbing lines.

Low pressure caused by blockage

If debris is blocking or clogging your pump strainer basket, impeller or skimmer, there may be a reduced flow of water into the filter, resulting in low pressure. Reduced pool water levels can also cause low pressure. Low pressure impacts circulation and, over time, can damage the filter.

Cartridges or grids need replacing

One of the most common issues with faulty filters is old or worn cartridges or grids. Reach out to the manufacturer of your equipment and enquire about parts - they should be able to provide you with replacements given you supply them with the correct information.

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Zodiac Australia provides swimming pool equipment, pool maintenance products, pool cleaners and pool care supplies including market leading brands such as Baracuda, Polaris, MagnaPool and iAquaLink.

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