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how to empty sand from a pool filter

Author: PoolKing - Pool Sand Filter Manufacturers

How to Empty Sand from a Pool Filter: A Comprehensive Guide

Owning a swimming pool is a true luxury, but with it comes some necessary maintenance tasks to keep it clean and functional. One of the most important parts of your pool system is the filter, which helps to remove sand, debris, and other impurities from your pool water. Over time, your filter will become clogged with sand and other particles, and it will become necessary to empty and replace the sand. In this article, we will explain how to empty sand from a pool filter step-by-step so you can successfully complete this vital maintenance task.

1. Determine If Your Sand Filter Needs Replacing

Before you begin the process of emptying sand from a pool filter, you need to determine whether or not it needs replacing. There are several signs your filter may need replacing, including decreased water pressure, cloudy or dirty pool water, or a filter that is more than five years old. If you notice any of these signs, it may be time to replace your filter entirely.

2. Shut off Pump and Make Sure System Is Safe

The first step to emptying sand from a pool filter is to shut off the pump completely. This will prevent any water from flowing through the system and ensure safety. Next, make sure the system is safe by verifying that power is off, all valves are in the correct position, and the pressure gauge is at zero.

3. Remove Pressure Gauge and Drain Water from Tank

To start removing the sand, you need to first take out the pressure gauge from the filter. This is achieved by using a wrench or pliers to loosen and remove the gauge. Next, you'll need to remove any water remaining in the filter tank. You can do this by opening the drain valve and allowing the water to exit the tank.

4. Disconnect the Sand Filter's Multiport Valve

Once you've removed the pressure gauge and drained the water from the filter, you'll need to disconnect the multiport valve from the sides of the filter. This process varies depending on the type of sand filter you have.

5. Remove Sand from the Filter

Now that the filter is disconnected, it's time to remove the sand. Depending on the size of your filter, you should be able to reach in and collect the sand in a bucket. If your filter is too large, you can use a wet-dry vacuum or other tool to suction the sand out of the filter. Be sure to take your time with this step so that you don't damage the filter, and be sure to remove all of the sand.

7. Clean the Tank and Replace the Filter

After you've removed all of the sand from the filter, it's time to clean the tank thoroughly. Be sure to remove any remaining sand or debris, and rinse it with a hose. Then, replace the filter by pouring the new sand into the tank, followed by the multiport valve.

8. Secure System and Turn on Pump

Finally, it's time to secure the system, ensuring all valves are in their correct position, then turn on the pump. You'll need to run the system for a few minutes to flush out any remaining debris, then you can stop the system, replace the pressure gauge, and start using your pool again.

In Conclusion

Emptying the sand from a pool filter is a necessary task for any pool owner, but it's not one to be taken lightly. By following the steps we've outlined above, you can successfully remove the sand from your filter and replace it with new, ensuring your pool remains clean and healthy for years to come. Remember, if you're not comfortable performing this maintenance yourself, you can always contact a professional to do it for you.

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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 .
a.Firstly you can tell me the pool size such as wide, length and depth.The circulation period is 4 hours,then we can use the pool volume divide by 4 to know the flow rate.Based on this we can know choose the suitable model for sand filter and pump.
b.Usually 4 meters can install a pool light.Both ends of the pool can install the ladders.
The basic filtration equipment can be chosen like above method.The other accessories can be fixed according to the using environment and requirement.
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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.
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Contact: Sandy

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