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how to lower pool filter pressure

Author: PoolKing - Pool Sand Filter Manufacturers

Introduction

The pool filter is an essential part of any swimming pool. It helps maintain the cleanliness and hygiene of the pool water by removing dirt, debris, and other particles from the water. However, sometimes the pool filter pressure can rise to a level that indicates there is a problem with the filter or the pool’s plumbing system. In this article, we will take a look at the causes of high pool filter pressure and how to lower it down to an acceptable level.

Understanding Pool Filter Pressure

Before we start discussing how to lower pool filter pressure, it is important to understand what it is and how it works. Pool filter pressure is the measure of the resistance to water flow caused by the filter media. When the pressure gauge on the filter rises above the normal range, it means that the filter is clogged or there is a problem with the plumbing system. The normal range of pool filter pressure is between 8-15 PSI, depending on the type and size of the filter.

Causes of High Pool Filter Pressure

There are several reasons why pool filter pressure can rise above the normal range. Some of the most common causes include:

1. Dirty or clogged filter: Dirt and debris can accumulate on the filter media, causing it to become clogged and reducing the flow of water through the filter.

2. Pool pump is too powerful: If the pool pump is too powerful, it can cause the water to move through the filter too quickly, increasing the pressure.

3. Closed or partially closed valves: Valves that are closed or only partially opened can cause the water pressure to increase in the filter.

4. Plumbing problems: Issues with the plumbing system can cause blockages or restrictions in the flow of water, increasing the pressure in the filter.

5. Incorrectly sized filter: If the filter is too small for the pool, the pressure can rise as it struggles to cope with the volume of water.

How to Lower Pool Filter Pressure

Now that we know what causes high pool filter pressure let's discuss how to lower it down to an acceptable level.

1. Clean or replace the filter: The first and most obvious solution to reducing filter pressure is to clean or replace the filter. If the filter is clogged, it will not be able to effectively remove debris from the water, and the pressure will increase. You can clean the filter yourself by backwashing or hosing down the filter media. If the filter is too old or damaged, it may need to be replaced entirely.

2. Adjust the pump speed: If the pool pump is too powerful, it can cause water to move through the filter too quickly, increasing the pressure. You can lower the speed of the pump to reduce the pressure.

3. Open valves: Closed or partially opened valves can cause the water pressure to increase in the filter. Make sure that all valves are fully open to allow free water flow.

4. Check for plumbing problems: Issues with the plumbing system can cause blockages or restrictions in the flow of water, increasing the pressure in the filter. Regular maintenance and inspection of the plumbing system can help prevent these issues from arising.

5. Use an appropriate filter size: If the filter is too small for the pool, it will struggle to cope with the volume of water, leading to increased pressure. Make sure you have an appropriate-sized filter for your pool.

Conclusion

A pool filter is an essential component of any swimming pool. It helps maintain the cleanliness and hygiene of the pool water by removing dirt, debris, and other particles from the water. Pool filter pressure is the measure of the resistance to water flow caused by the filter media. High pool filter pressure is a common problem that can be caused by several factors, including a dirty or clogged filter, closed or partially opened valves, plumbing problems, or an incorrectly sized filter. By following the tips mentioned above, you can lower pool filter pressure and ensure that your pool water is clean and safe to swim in.

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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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