A pool filter is a must. It eliminates the impurities present in the water and enables you to enjoy clear water in your pool. If you choose a sand filter, it will be included in the price of your Waterair ESSENTIAL equipment line.
A filtration system is essential for a swimming pool because it provides 80% of the water treatment needs of your pool. But running a sand filter is energy intensive. It is estimated that, on average, a filtration system runs for 2,200 hours per year, excluding active wintering. To reduce the electricity consumption of filtration systems, Waterair Swimming Pools has carried out research and is developing less energy-consuming solutions, including the Waterair ECO.WAT and TOP lines of equipment. In 2021, the company was awarded the Solar Impulse Efficient Solution label for its zero-impact pool.
Transform your sand filter into a low-consumption system by adding the Eco·R Plug-in. This pump speed variation system enables you to select the ideal filtration power for your pool.
You can make considerable energy savings with this solution, which consumes up to five times less energy than a conventional filtration system. Your purchase will have paid for itself in less than five years. This is good news for your budget and for the environment. Connected to our easy·care mobile app, you can control everything from your smartphone.
Like cartridge filtration, a sand filtration system is easy to install in a plant room near the pool or in the basement of your home.
The sand filter takes the form of a tank filled with sand. The pool water is filtered in several stages:
The sand filtration system has an efficiency of 30–40 microns. It is a little coarser than a cartridge filtration system, which has a filtration efficiency of around 20–25 microns. But sand filtration is one of the most widely used filtration solutions because it is both easy to run and efficient.
The sand filter responsible for maintaining the water quality of your swimming pool needs regular attention and maintenance.
By dint of filtering impurities, your pool’s sand filter will contain more and more dirt. This makes it harder for the water to circulate through your filter system and the pressure then increases. You will then need to carry out a backwash.
Your sand filter has a function that enables you to rinse the filter sand present within the filtration system. To carry out this backwash:
This backwashing operation should be carried out at least once a month. This step uses a lot of water, much more than a cartridge filtration system. Ideally, this procedure should be carried out when the water level in the pool is relatively high.
Despite regular backwashing, a pool sand filter will eventually clog up. So, after several years of use, you will need to change the filter sand. Depending on your pool’s exposure to pollutants (insects, dead leaves, etc.), the sand may need to be changed every 2, 3, 5 or 7 years.
To help you choose the best filtration system for your pool, here is a comparison table between the sand filter and the cartridge filter:
| Sand filter | Cartridge filter | |
| Filtration efficiency | 40–50 microns | 20–25 microns |
| Use of chemicals | A coarser filtration medium requires more chemicals to balance the water | A finer filtration medium reduces the need for chemicals |
| Water consumption | Important water losses are to be expected during each backwash | Low, because minimal water discharge during maintenance |
| Maintenance | Regular backwashing, treatment of emissions, risk of proliferation in the event of algae in the sand filter | Regular maintenance consisting of opening the filter, extracting the cartridge and rinsing it with water |
| Consommables | Sand needs replacing every 2–5 years, on average | Cartridges need replacing every 3–5 years |
The Filwat Compact System® filtration system is the heart of your pool. Positioned right at the edge of your pool, it eliminates the need for a remote plant room. Its role is to ensure perfect water quality and facilitate maintenance.
Everything you need to efficiently filter your pool is in the pool accessories shop, in the pool filtration department!
Locaroc 2 is a preassembled unit so you can easily and quickly install a service unit in your Waterair pool. Thanks to is true rock design, Locaroc 2 has a genuine, natural look and helps the filter unit beautifully blend into your garden.
Waterair Swimming Pools’ regulates its procedures and makes decisions in line with a respect for social values, the environment and a sustainable economy. To this end, we have developed the Waterair environmentally friendly swimming pool: customised, heated, covered, safe, innovative and energy saving. Our goal is to offer an affordable swimming pool that respects the environment.
As part of this approach, we have launched the eco·r label to enable customers to identify all our environmentally friendly products. Discover our new innovative and low-energy filtration system!
Are you planning to install a pool?
Request a feasibility study and obtain a quote.
Order your free catalogue