loading

Poolking, your best swimming pool equipment manufacturer and supplier with more than 20 years experience.   ​​​​​​​  Email: sandy@poolking.co

how often should i change pool filter

Author: Poolking - Swimming Pool Equipment Manufacturer

Swimming pools are an excellent way to cool off during hot summer days, but owning one comes with a lot of responsibilities that must be attended to regularly. One of the most important obligations of pool ownership is keeping the pool water clean and safe for everyone who uses it.

To ensure that pool water is always clean and healthy, a pool owner must invest in a reliable pool filter, which is responsible for trapping dirt and debris as water flows through it. Over time, however, the pool filter will become clogged and ineffective, and its ability to keep pool water clean will be hindered. For this reason, it is essential to know how often to change the pool filter to keep your pool water sparkling clean.

Subheading 1: Your Pool filter needs regular maintenance

The maintenance of your pool filter system is vital to enjoy a clean and healthy pool. There are three types of pool filters namely sand, cartridge, and DE (Diatomaceous Earth). Although they differ in terms of their maintenance, cleaning procedures, and replacement times, regular maintenance is critical.

At a minimum, you should clean your pool filter at least once a month during the pool season. For instance, your pool is open from May to September each year, clean your filter once a month during those months.

Subheading 2: The Factors that Determine How Often You should Change Your Pool Filter

The factors that dictate how often to change the pool filter will depend on how often the swimming pool is used and several other aspects.

Swimming Frequency: The more frequent the swimming, the more debris the pool filter holds. Thus, the pool filter requires changing more often.

Type of Filter: The maintenance schedules for DE, sand and cartridge filters vary. For instance, sand filters last up to 7 years, while cartridge filters last to 2 years.

Type of Pool: Pools, such as inground pools, require more maintenance efforts compared to above-ground pools.

Pool Chemicals: The chemical balances can significantly affect the longevity of the pool filter. Chemical imbalances can negatively affect filter pressure, reducing the lifespan of the filter.

Subheading 3: Signs That You Need to Replace Your Pool Filter

It is vital to know the signs indicating that your pool filter needs a replacement. Here are some signs to look out for:

Reduced water flow: Low water pressure is an indication of a clogged filter.

Murky Water: It is a warning sign if you notice that the water is not as sparklingly clear as it used to be. It might mean the filter is no longer doing its job.

High Filter Pressure: If the filter pressure increases to a significantly higher value, it could be an indicator of a clogged filter that needs replacing.

Water Leaks: If you notice water leaks on your pool filter body, it generally means that the filter's parts are worn and compromised.

Subheading 4: How Often to Replace Pool Filter According to Your Filter Type

There are three filter types that dictate changing times. These filters have specific maintenance routines and lifetimes to ensure that they function efficiently:

Sand Filters: replace after 5-7 years

DE Filters: Once a year, backwash and rinse.

Cartridge Filters: replace after 2-3 years

Subheading 5: Benefits of Regularly Changing the Pool Filter

The following benefits occur when you regularly change your pool filter:

Cleaner Water: A fresh, clean filter promotes cleaner pool water.

Fewer Expenses: If you replace your filter before it breaks down, you'll avoid costly last-minute replacements.

Improved Pool Equipment Longevity: When pool parts are well-maintained, their lifespan is longer.

Avoidance of Health Issues: When a pool filter is doing its job correctly, it helps keep bacteria and environmental toxins from the water, ensuring a safe and healthy swimming experience.

In conclusion, pool filters play a critical role in maintaining clean and healthy pool water. Homeowners must regularly maintain and replace the pool filter, depending on factors such as filter type, frequency of swimming, and pool chemicals. By knowing when to change your filter, you can help prolong your pool equipment's life, save money and enjoy happy, healthy swimming experiences.

.

GET IN TOUCH WITH Us
recommended articles
News Application Products Transport
Poolking's top class sand filters in Chimelong Ocean Kingdom
Chimelong Ocean Kingdom is the largest ocean theme park in the worldwith rare marine animals, top-level amusement equipment and novel large-scaleshow, and strives to create the top-class, largest and most abundant amusementequipment leisure themed park.
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.
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 Commmercial Sand Filters in Atlantis Sanya
Marine culture is a major feature of the hotel. The ambassador lagoon with 13500 tons of natural seawater has more than 280 kinds of fresh water and marine animals[ 4] The hotel has a "lost space" aquarium. Tourists can watch more than 280 species of creatures such as sharks, rays, jellyfish, upside down fish, sea eels and giant bone tongue fish. They can also dance with exotic marine creatures in diving projects. In addition, the hotel has also created a water world, covering an area of 200000 square meters. It is a water park open all year round, with dozens of top slides, speed rafting, water fun park for children, etc. The hotel has 21 global gourmet restaurants, covering international cuisines such as European self-service, Chinese self-service and Japanese cuisine. Tourists can feel the world food culture in Hainan
Pool King 16th anniversary
1st Sep is Poolking's 16th anniversary celebration,today we have many games for our staffs to participate and they can award many gifts.
Let our business reach a new level and create a more brilliant future!
no data

Best swimming pool equipment manufacturer - Poolkin will continue for innovative management and excellent quality. Imagination will subvert the future, intelligent manufacturing will lead the era, that's the motto of Poolking!

If you have any question,please contact us.

Contact: Sandy

Email: sandy@poolking.co

Sales Hot line: +86-20-34982303

WhatsApp:+86-13922334815

Add: No. 80, Danan North Road, Dagang Village, Dagang Town, Nansha District, Guangzhou City (temporary business premises)

Copyright © 2025 Guangdong Poolking filtration equipment manufacturing co. Ltd. - www.poolking.co All Rights Reserved. | Sitemap
Contact us
whatsapp
Contact customer service
Contact us
whatsapp
cancel
Customer service
detect