Choosing the best filtration system for your pool involves taking plenty of factors into account, which involves knowing the distinctions between different systems.
Pool filters are an essential component of pool circulatory systems, as they trap debris and keep the pool conducive for you and your swimming hobby. Different filters use different media to accomplish the task, each having its advantages and disadvantages that are important to know in order to make the most from them.
Sand filters vs. Cartridge filters – Comparison table
| Sand filters | Cartridge filters | |
|---|---|---|
| Smallest particles it can filter out | 20 microns | 10 microns |
| Media it uses | Silica sand | Cartridge |
| Time it can work before replacement | Between 5 and 10 years | Between 1 and 3 years |
Sand vs. Cartridge filters – How they compare
The only difference between these two are the filtration media they use – sand filters use silica sand, while cartridge filters use cartridge layer systems.
Sand filters are a large globe structure that you fill with ‘filter’ sand – silica sand, in other terms. You then pass the water through it. They are quite economical, as they can last between 5 to 10 years before you need to change them.
To maintain them, you will need to ‘backwash’ the system, which involves removing the dirt and particles that are in the sand, since the pressure begins to increase over time as the sand traps more particles.
On the other hand, a cartridge filter will come in form of a 2-piece tank with a bottom and lid, and a cartridge is within the tank. It cleans the water by pushing it from your pump and guiding it through a membrane in the cartridge. The level of maintenance it needs is very low, and you will only need to clean the cartridge if the pressure is 10 Psi above the usual reading it posts – you will also not need to do backwashing, and the cartridge lasts between 1 and 3 years before replacement.
Gas vs. Cartridge filters – A comparison review
Sand filters
Pros
- Very easy to use
- Very low maintenance
- Quite affordable
- It can remove small dirt and debris, measuring 20 to 40 microns at least
- Lower initial costs
- Backwashing is very easy to do on your own
Cons
- It cannot filter particles smaller than 20 microns
- Needs a sand change every 5 to 8 years
- Backwashing reduces the pool water
Cartridge filters
Pros
- Removes very minute particles
- Lower pressures lead to lower energy costs
- Does not impact water chemistry
- Easy maintenance schedule
Cons
- You will need to filter and wash cartridges
- You will need to replace them every 1 to 3 years
- Impractical for large pools
- Higher maintenance and purchase costs
Verdict: So, what is the winner? Gas or Cartridge filters?
Overall, the cartridge filter is the best option as it filters more content despite the higher initial cost, but it will work best if your pool is smaller.
FAQs
Do pool filters clean up my swimming pool?
Contrary to popular belief, no they do not clean the pool. Their purpose is to trap dirt and particles in the water, which reduces the particles floating out and keep the pool looking attractive.