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why is my pool filter turning red

Why Is My Pool Filter Turning Red?

Are you noticing a reddish tint in your pool water? Do you see red stains on your pool filter and walls? If yes, then you might have encountered one of the most common pool problems – iron accumulation. Iron is a natural mineral found in soil and groundwater which can cause staining, discoloration, and a reddish tint in your pool water if not removed properly. In this article, we will look at the various reasons why your pool filter is turning red and what you can do to fix this problem.

Reasons for Red Pool Filter

1. Iron in the Water

The most common cause of a red pool filter is the concentration of iron in your pool water. Iron can enter your pool in many ways, such as from well water, corroded pipes, or metal pool equipment. When the iron concentration in your pool water exceeds the normal limit, it can stain the walls, floors, and filter of your pool, leaving a rusty red appearance.

2. Algae Formation

Algae is a common problem in swimming pools, especially during the summer season when the temperature is high, and the sunlight is abundant. However, algae can also lead to a red pool filter. If you fail to maintain your pool properly or if the water pH levels are imbalanced, it can lead to the formation of algae that can stick to your pool filter, staining it red.

3. An Overused Pool Filter

If you overuse your pool filter or fail to clean it regularly, it can cause a buildup of debris and other contaminants. The accumulation of dirt and algae in your filter can clog it, which can make it difficult for water to pass through it. A clogged filter can lead to water stagnation, which can promote the growth of iron and algae, leading to a red pool filter.

4. Metal Pool Equipment

The use of metal pool equipment such as ladders, rails, and diving boards can cause a rise in iron concentration in your pool water, leading to red pool filter issues. As these metal pool parts corrode, they release iron into your pool water. Over time, the accumulated iron can lead to staining, discolouration, and a reddish tint in your pool water.

5. Low Water PH Levels

The pH level of your pool water affects its clarity, cleanliness, and overall health. If the pH level of your pool water is low, it can cause the iron and other minerals to dissolve in the water, which can lead to a red pool filter. In addition, low pH levels can also cause corrosion in pool equipment, leading to the introduction of more iron into the water.

Fixing a Red Pool Filter

Now that we have identified the root causes of red pool filter problems, let's look at how to fix them.

1. Use a Pool Clarifier

A pool clarifier is an essential product that helps to treat cloudy or discoloured pool water. If you notice the red pool filter is due to iron or algae accumulation, using a pool clarifier can help to bind and remove these contaminants from your pool water.

2. Shock Your Pool

Shocking your pool is another effective way to clear up contaminants quickly. Shocking your pool involves adding a large dose of chlorine to your water to sanitise it, oxidise it, and clear up any contaminants.

3. Add a Metal Sequestrant

Adding a metal sequestrant is another effective way to fix a red pool filter. A metal sequestrant is a product that helps to bind and remove any accumulated iron or metal from your pool water, preventing staining, discolouration, and a reddish tint.

4. Clean Your Pool Filter

Cleaning your pool filter regularly is important to ensure your pool water is clean and clear. Clean your pool filter at least once or twice a week, depending on your pool usage.

5. Adjust Water pH

Maintaining your pool water pH level is important to keeping it healthy and clear. Adjusting the pH level of your pool water can help to prevent the accumulation of iron and metal in your pool filter, which can cause a reddish tint in your pool water.

Conclusion

In conclusion, a red pool filter is a common occurrence in swimming pools. Understanding the root causes of the problem and implementing the right solutions can help to keep your pool water clear and healthy. Follow the tips outlined in this article to fix your red pool filter and enjoy a clean, clear 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 .
Bigger is not always better when it comes to pool pumps. A pool pump that is too large can hinder filtration and can even damage a pool’s filter and/or heater. It is therefore very important to know the size of a pool before purchasing a pool pump. If there is additional equipment (such as water features) installed into the pool, it will have to be taken it into account when deciding what size pump is going to be purchased. The more equipment is installed into a pool, the more powerful the pump needs to be.
It is important to consult with a pool equipment expert, such as Poolking's Pumps, before buying a pool pump. The team at Poolking will be able to give our customers professional advice regarding the size of the pump they will need to purchase.
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