Types of filters for your Intex pool
To filter your pool you can use two types of filters, a cartridge filter and a sand filter. 

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

Sand filter
A sand filter has better filtering properties and is cheaper than a cartridge filter, but it is a bigger investment. 
With a sand filter, the pool water enters the sand filter from above and sinks down through the sand. As the water descends along between the sand, dirt from the water remains with the sand. This is how the water is filtered. 
Because the water descends via the sand, a lot of dirt remains in the sand after a while. In order to clean the sand, a backwash (rinsing) must be carried out. By performing a backwash (every three weeks), the dirty water is pumped through the backwash and the water goes to the sewer or to another drain. 
After 5 years, you should replace the filter sand with new sand. 
If the sand filter has not been circulating for some time, the sand will start to stick together and you will have to replace te sand. 
The amount and type of sand to be used in the sand filter is always indicated on the sand filter. 

Filter pump and sand filter in one unit
To filter your pool properly, you need a pump and (sand) filter. 
The pump ensures that the pool water passes through the filter. 
We, at Stesha Wellness, offer 2 sand filter pumps that are filter and pump in one, 2 in 1! 
The Acis Filtration Kit is a 2 in 1 model and the Intex sand filter is also a 2 in 1 model. 

The basis for your clean pool
The filter and pool pump are the basis for obtaining clean filtered water. 
To obtain and keep the water clear and clean, it's important that the pool water is pumped through a (sand) filter. 
If you would not filter the water, bacteria, algae and fungi get a chance to develop in the pool water and adding products to your pool water is not very useful. 

How much flow rate should my filter or pump have?
To know how much flow rate your pool filter and pump must have, there is a general rule: volume of the pool in cubic meters (m³) divided by four. 
So: number m³ : 4 = the necessary flow. 
E.g.: 18 m³ : 4 = 4.5 m³/h for this you have to take a pump and/or filter that is at least as heavy, certainly not lower! It's always better to have some margin than to calculate with a small margin. 
Hereby you can be sure that the water is sufficiently filtered and the more the water is filtered, the better the quality of the pool water.