The sad fact is that water hardness is now almost everywhere and the results to your espresso machine can be dramatic, scale slowly builds up on the inside of the machines internal boiler and heat exchangers. First sign of build up occurring is a reduction in coffee temperature from the group head, the next thing to happen is that the group head blocks with scale, at this point the machine will require an expensive descale. Water treatment systems will extend the life of your machine and cost from only 1 coffee a week! now ask yourself is it worth the risk?
Even in a soft water area, chlorine taste and odour present in the water supply will effect the taste of the beverage being made. We would strongly recommend the fitting of a carbon based filtration system.