A filter cartridge is just like a hoover
We often get the question how many times you should replace the filter cartridge.
It is difficult to give a correct answer, but we always compare a filter cartridge with a hoover.
The more you vacuum, the cleaner your home will be.
The more you filter, the cleaner and better your water quality is.
The more you replace the dust bag, the cleaner you can vacuum your house.
The more you change the filter cartridge, the better the water quality.

How long do you have to filter the pool water?
The more your water is filtered, the better your water quality. This is very clear. But how long should your filter run?
Well:
The outside temperature is less than 20°C, let the filter run for 12 hours.
If the outside temperature is more than 20°C, let the filter run for 24 hours.
Tip: Set the filter operating time with a clock. In this way, you can choose to let the filter run at night.

Maintaining a cartridge filter.
The neater the filter, the better the water can be filtered.
It is recommended to clean a filter cartridge regularly with a cleaner for filter cartridges.
With the nozzle cleaner you can already remove a lot of dirt from the filter.
Of course you cannot keep rinsing the cartridge and it is recommended to replace the filter regularly.
How many times you have to clean and replace the filter is hard to say. This depends on several factors, such as how many times you swim, is there a tree in the neighbourhood, how is the water maintained,... Of course, the filter should not look completely green or brown. In this case, the filter has little effect on cleaning water.

Choose a filter that fits your pool.
To know what filter capacity you'll need to filter your pool, you need to do a little calculation, I emphasise 'small', because it doesn't take much time. You have to divide the amount of water by 4. This way, the pool is completely filtered in four hours.
Calculation:
*Square or rectangular pool:
Length x width x height
Example: Length 8 m x width 4 m x height 1,45 m = 46,40 litres water = 46,40 m³
46,40 : 4 = 11,60
So for the example given you would need a filter pump with a flow rate of at least 11,60 m³/h
*Circular pool:
Radius x radius x pi x height
(The radius is half the diameter e.g. diameter is 6 than the radius is 3)
e.g. : Radius 3 m x radius 3 m x pi 3,14 x hieght 1,50 m =42,39 litres water = 42,39 m³
42,39 : 4 = 10,60
For the given example you would therefore need a filter pump with a flow rate of at least 10,60 m³/h

Cartridge filter:
A cartridge filter is easy to install and does not take up much space. A cartridge filter is also called a cartridge filter and works with a filter cartridge. The pool water goes through the filter cartridge and thus the water is filtered. A filter cartridge is easy to replace and is low in price. When you buy a cartridge filter, all the accessories you need, such as water hoses, are included in the filter in one package.