It is sometimes said that cartridge filters are more environmentally friendly than backwash protective filters. The reason given is that water is consumed during backwashing.
However, if you make a thorough comparison, you will quickly see that this calculation does not work.
Tens of litres of water are used to manufacture and transport a replaceable filter element, including foil packaging and cardboard – many times more than what flows into the sewage system during backwashing. Not to mention the energy required for production and transport.
In addition, a small mountain of waste accumulates with every filter change. And this at least twice a year, because filter cartridges must be replaced at least every six months for hygienic reasons (according to EN 806-5, A).