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how to backwash an above ground pool filter

Author: Poolking - Swimming Pool Equipment Manufacturer

How to Backwash an Above Ground Pool Filter

Maintaining your pool filter is an important part of keeping your above ground pool clean and safe for swimming. Backwashing your filter is an essential step in this maintenance process, as it helps flush out any debris or contaminants that have been trapped in the filter. In this article, we will teach you how to backwash your above ground pool filter in just a few simple steps.

What is backwashing?

Backwashing is the process of reversing the flow of water through your pool filter. This helps to dislodge any trapped debris and dirt from the filter media, flushing it out through the backwash valve and out of the filter.

Why is backwashing important?

If you fail to backwash your pool filter regularly, trapped debris and contaminants can become a breeding ground for bacteria and other pathogens. This creates an unhealthy and unpleasant swimming environment for you and your family. Regular backwashing ensures your pool water remains clean and safe to swim in.

When should I backwash my pool filter?

You should backwash your pool filter when the filter pressure gauge reads 8-10 psi above the normal operating pressure. This indicates that the filter is becoming clogged and needs to be cleaned. If you have a sand filter, you should backwash it every 2-3 weeks. For cartridge filters, you can backwash them when the pressure rises or when the water flow visibly diminishes.

Steps for backwashing an above ground pool filter

1. Turn off the pool pump – Before you start, turn off the pump to prevent water from entering the filter. This ensures that you can open the filter without any water pressure.

2. Locate the backwash valve – The backwash valve is usually found on the filter housing, near the pump. You may need to consult your owner’s manual.

3. Attach the backwash hose – The backwash hose is used to carry the dirty water from the filter out of the pool area. Connect the hose to the backwash valve.

4. Open the backwash valve – Turn the valve handle to the backwash position. If your valve has multiple positions, make sure it is in the backwash position.

5. Turn on the pump – Turn on the pump and let it run until the water in the backwash hose runs clear. This ensures that all debris has been flushed out of the filter.

6. Switch to rinse – After backwashing, switch the valve handle to the rinse position. This helps to flush out any remaining debris from the backwash process.

7. Turn off the pump – Turn off the pump and disconnect the backwash hose from the valve.

8. Reset the valve – Return the valve to its original position (usually the filter position).

In conclusion

Backwashing your above ground pool filter is an important step in maintaining your pool’s cleanliness and safety. With these simple steps, you can easily take care of your pool filter and ensure that you and your family can enjoy a clean swimming experience. Remember to backwash your filter regularly, and enjoy a clean, healthy pool!

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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 .
Poolking’s Horizontal Sand Filters in Singapore Zoo
Singapore Zoo is covering an area of 28.3 hectares. Natural scene in the parkinstead of fences, creating a natural living environment for all kinds of animals. Thereare about 3000 animals running free and living peacefully with tourists. It has beeninstalled more than 40 nos POOLKING's stacking horizontal sand filters in Sea Lion,Manatee Penguin hall . POOLING is the first manufacturer in China to produce
stacked horizontal sand filter.
Poolking’s sand filter warranty is 3 years for fiberglass filter,2 years for plastic filter.During the warranty period,if the filters parts have any damage,we can judge the factors according to the photos or videos, then we can offer free parts to replace. If the filters are damaged badly,we will provide a new one.
The pumps and lights are 1 year warranty,the method is same as filters.
----Yes, they can. Silica sand is mainly used for filtration, while activated carbon is mainly used for adsorption. Silica sand is effective for higher water quality requirements. When use them together, silica sand should be placed on the bottom layer, and then activated carbon should be filled on the sand, but the cost of using two media is much higher.
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Contact: Sandy

Email: sandy@poolking.co

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