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how to replace sand in a sand pool filter

Author: PoolKing - Pool Sand Filter Manufacturers

How to Replace Sand in a Sand Pool Filter

If you own a swimming pool, you understand the importance of keeping the water crystal clear and sparkling. One of the essential components of a pool is the filter, which removes impurities from the water. Sand pool filters are the most commonly used filter system in swimming pools. Over time, the sand inside the filter gets contaminated and needs to be replaced. In this article, we'll guide you through the process of how to replace sand in a sand pool filter.

Understanding Sand Pool Filters

Sand pool filters are filled with special grade sand that filters out dirt and debris. The water from the pool is pumped through the sand, and as it passes through, impurities are trapped in the sand. A sand filter should be backwashed regularly to remove dirt and debris from the sand. However, at some point, the sand will become clogged with dirt and needs to be replaced.

When to Replace Sand in a Sand Pool Filter

It's time to replace the sand in your pool filter when you notice that the water is not as clear as it should be or if the pressure gauge on your filter is running high. Ideally, the sand in your filter should be replaced every five to seven years. Regular backwashing and maintenance can prolong the lifespan of the sand.

Steps to Replace Sand in a Sand Pool Filter

Replacing sand in a sand pool filter is not a difficult task, and it can be done by following these easy steps:

1. Turn off the pump: Before you start the replacement process, turn off the pump and disconnect the power supply. This will prevent any accidents from happening.

2. Drain the filter: Now, drain the filter by removing the drain plug located at the bottom of the filter. You can also use a shop vac to suck out the sand.

3. Remove the Multiport Valve: Remove the multiport valve from the top of the filter. This may require some unscrewing or twisting to release the valve from the filter.

4. Remove the Sand from the Filter: Carefully scoop out the old sand from the filter, being sure not to damage the laterals at the bottom of the filter.

5. Clean the Filter: After removing the sand, clean the filter thoroughly by hosing it down. You can also use a TSP (trisodium phosphate) solution to disinfect the filter. Be sure to rinse it well.

6. Add New Sand: Add new sand to the filter, making sure not to overfill it. Be sure to get the right grade sand for your filter.

7. Reinstall the Multiport Valve: Reinstall the multiport valve by replacing the screws or twisting it back into place.

8. Fill the Filter with Water: Before turning the pump back on, fill the filter with water to prevent damage to the laterals.

9. Turn the Pump Back On: Turn the pump back on and check for any leaks.

Conclusion

Replacing sand in a sand pool filter is an essential maintenance task that should be performed every five to seven years or as needed. By following the steps outlined in this article, you can easily replace the sand in your pool filter and ensure that your swimming pool stays crystal clear and sparkling all season long. So get started today and keep your pool in tip-top shape!

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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 .
----It is best to replace the silica sand of sand filters every 1-2 years for the following reasons:
a During backwashing, the filtration bed volume will expand upwards by 1.2 to 1.3 times. The water flow will drive the filtration layer to flow up and down, causing the filtration material particles to collide with each other. Backwash will let the small sand evacuate.
b.Some silica sands will be welded when the acid and alkali are changed due to insufficient purity;
Therefore, the longer the time, the worse the filtering effect of the sand tank. Since backwashing will consume and take away some sand, we need to replace the sand in the sand tank within the specified period.
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.
----Poolking utilize serval world class production machines to produce the products, and strict quality control system for each products. It treats a small flaw with zero tolerance.
Not only good quality products, but also fast and satisfying after sales service for clients. Let the clients enjoy the clear water and comfortable services.
If Poolking’s products are same quality than others but higher prices, how can Poolking survive ? However Poolking can defeat other players and seize more market share.
Poolking is your best choice!
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Contact: Sandy

Email: sandy@poolking.co

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