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how often do i need to clean my pool filter

Author: Poolking - Swimming Pool Equipment Manufacturer

How Often Do I Need to Clean My Pool Filter?

As a pool owner, keeping your pool clean, clear, and sparkling is a top priority. One important aspect of pool maintenance is cleaning the pool filter. But how often do you need to clean your pool filter? In this article, we'll delve into the subject, exploring what a pool filter does, how it works, how often to clean it, and signs that indicate it's time to clean it.

What Does a Pool Filter Do?

A pool filter is an essential component of a swimming pool's circulatory system. It removes contaminants and debris from the water to keep it clean, clear, and safe to swim in. Without a pool filter, your swimming pool water would quickly become cloudy, opaque, and ultimately, unsanitary.

How Does a Pool Filter Work?

Pool filters work by passing pool water through a filter medium that catches and removes impurities. There are three types of pool filters to choose from: sand filters, cartridge filters, and diatomaceous earth (DE) filters. Each type operates differently but has the same end goal of cleaning the pool water.

Sand Filters: In this filtration system, water is pumped through a bed of sand, which traps dirt and debris. Sand filters are the most common type of pool filter, mainly because they are the easiest to maintain.

Cartridge Filters: In this filtration system, pool water flows through a pleated cartridge that traps dirt and debris. Cartridge filters require less maintenance than sand filters and can catch finer particles.

DE Filters: In this filtration system, water passes through a grid coated with DE powder, which acts like a sieve, trapping tiny particles. DE filters are the most effective but require more maintenance than sand or cartridge filters.

How Often to Clean a Pool Filter

The frequency at which you clean a pool filter will depend on several factors, including the size of your pool, filter type, and how frequently you use your pool. As a general rule of thumb, pool filters should be cleaned at least once every four to six months, but it can vary based on the pool's usage.

Sand Filters: Sand filters require the least amount of maintenance and only need to be cleaned every six to eight weeks. However, the sand in the filter should be changed every five years or sooner, depending on usage.

Cartridge Filters: Cartridge filters need to be cleaned once a season or more frequently if the pool is used heavily. Clean the filter when the water pressure rises above normal operating levels.

DE Filters: DE filters need frequent cleaning, about once a month or more depending on usage. As a DE filter gets older and becomes clogged with debris, it will need to be backwashed to remove trapped dirt and DE powder.

Signs That Indicate It's Time to Clean Your Pool Filter

Here are several telltale signs that indicate it's time to clean your pool filter:

- Water pressure gauge reads high

- Pool water is cloudy or dull

- Algae growth

- Reduced water flow

Conclusion

Keeping a clean pool filter is essential to maintaining clear and healthy pool water. The frequency at which you clean a pool filter will depend on several factors, including the filter type, pool usage, and overall pool maintenance schedule. By following a regular maintenance routine and watching for signs that the pool filter needs cleaning, you can ensure your pool is always ready for a refreshing swim.

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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 .
11. Close the drain outlet valve and start the pump . Switch on the electric heater if any .
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