Review on ☕ 4 Pack Water Filter DLSC002 with Activated Carbon Softener for Coffee Machines, Compatible with ECAM, Esam, ETAM, BCO, EC - Improve Your Coffee Experience! by Felicja Sikora ᠌

The filter really works. The filter was tested for 6 months, measured the general hardness of the water, at the beginning of life with 7g. GH of tap water, the hardness dropped to 1g. GH, after 3 months it grew to 3g. GH, after six months it became 4-5g. GH with an average water flow per day 0.8 l. So it doesn't have to be changed every month. The photo shows which water is before the filter and which is after, from here draw conclusions whether you need it or not. Also, the presence of a filter has a positive effect on the taste of coffee, but this is more for gourmets)