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how to know if pool filter needs replacing

Author: PoolKing - Pool Sand Filter Manufacturers

Swimming pools are great investments for both summer and all year round use. It provides an excellent way for us to refresh, relax, and have fun with our family and friends. However, many pool owners often disregard the importance of maintaining their pool filters resulting in dirty and unusable water. A pool filter is a vital element in keeping your pool water clean and clear, but how do you know when should you replace it? In this article, we'll discuss how to know if your pool filter needs replacing and why it is essential to do so.

What is a Pool Filter?

A pool filter is an essential component of your pool's circulation system that helps keep the water clean and clear. A typical pool filter system comprises of a filter tank, filter media, and a multiport valve. Most pool filters use either sand, diatomaceous earth (DE), or cartridge type media to capture and filter out dirt and other impurities from the pool water. The filter works by drawing water from the pool and passing it through the filter media, trapping all the unwanted particles and returning the cleaned water back to the pool.

Why is it Important to Replace Your Pool Filter?

Pool filters have a finite lifespan and require regular cleaning and maintenance to avoid clogging and malfunction. Failing to maintain your filter can result in dirty and cloudy water, and in some cases, cause damage to other parts of your pool. Replacing your pool filter according to its manufacturer's recommended schedule can help you avoid costly repairs and ensure that your water is always clean and healthy.

How to Determine if Your Pool Filter Needs Replacing?

1. High Pressure Gauge Reading

One of the most evident signs that your pool filter needs replacing is a high-pressure gauge reading. Pool filters work using a specific amount of pressure to function correctly. If your filter is clogged or dirty, the pressure builds up, and the gauge reading rises. High pressure puts undue stress on the filter system, potentially leading to malfunctions, leaks, and even filter failure. When you notice a significant increase in pressure gauge readings, it may be time to consider replacing your filter.

2. Dirty and Cloudy Pool Water

Another clear sign that your pool filter may need replacing is if the water appears dirty and cloudy even after cleaning and maintenance. If you've noticed that even after backwashing or cleaning out your filter tank, the water remains blurry, you might need to replace your filter.

3. Visible Physical Damage

Inspecting the physical components of your filter may help you determine when it's time for a replacement. Over time, the filter's components may crack or develop cracks, tears, or other forms of damage. If you notice any visible physical damage on your filter's components, it may be time to replace the entire filter.

4. Water Flow Issues

Pool filters that are nearing the end of their lifespan often struggle to provide adequate water flow to the pool. If you've noticed that there's a decrease in water pressure or that it's taking longer for your filter to circulate the water, it's a sign that it's time to replace your pool filter.

5. Inefficient Filtration

Lastly, if your filter is no longer efficiently filtering the pool water, it's time to replace it. Insufficient filtration leads to poor pool water quality, which can cause irritations, eye infections, and even allergic reactions. If your pool water is no longer clear, clean, and free of debris, your filter may not be working correctly, and it's time to replace it.

Conclusion

Your pool filter is an essential element in maintaining the cleanliness and clarity of your pool water. By replacing it when needed, you can avoid costly repairs, ensure that your water is always sparkling clean and healthy to swim in. Keeping an eye out for the signs mentioned will help you determine when it's time to replace your filter and ensure that your pool remains a source of joy and relaxation for you and your family.

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After about 5~10days ,or when the reading of the pressure gauge on the pump side of the filter has increased by about 0.2bars since the last backwash , backwash the filter as follows:
1. Stop the pump
2.Close the valves on the suction and return lines.
3.Open the cover of the pump and empty the filter gasket .
4.Refit the cover
5.Open the valve to the drain outlet
6.Turn the lever to BACKWASH
7. Open the valves to the suction and return lines.
8.Start the pump .Rinse the filter for about 1 to 2 minutes until the water in the sight glass is clear .
NOTE : Any electric heater must be off .
9. Stop the pump
10. Turn the lever to RINSE , start the pump and rinse for about 15~30 seconds. Stop the pump and turn the lever to FILTER . This is the normal operating position .
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