Residential and commercial pools in Québec are mostly filtered through two distinct methods: sand filtration and cartridge filtration. Here are the differences between these two systems.
The most common filtration method is without a doubt sand filtration. It filters water at a fine level of 20 to 40 microns and has many benefits, in particular price-quality ratio, quick cleaning (backwash) and easiness to use. However, some disadvantages are linked to this type of filtration, including the duration of installation time, the higher price than a cartridge filter, the average quality of the filtration (may require the use of products to thicken the sand) and the over-consumption of water for each cleaning.
The other favoured filtration method by pool owners is the cartridge method. Its filtration fineness is established between 10 and 40 microns. That is why this method is favoured for small water-filled pools like spas. Its advantages include easy installation, a more reasonable cost at purchase, the good filtration quality and low water consumption. However, the disadvantages of this system are that you have to regularly clean the cartridge and the high price of these cartridges when you have to change them. Also, when the filter is very dirty, the internal pressure rises (it should always be between 15 and 30 psi), the circulation is inadequate and there is a danger of the pump overheating.
In the end, before choosing the type of filtration for your pool, be sure to have all the necessary information, and don’t hesitate to contact us for advice on the best system to choose.