15ENGLISH 157 Press the “ ” button to exit the programming MENU.Green“INTENZA+” water filter installationWe recommend you to install the “INTENZA+” water filter as this preventslime scale to build up in your machine and preserves a more intense aromato your espresso coffee.You can purchase separately the INTENZA+ water filter. Please refer to themaintenance products page in this user manual for further details.Water is a crucial part of every espresso, so it’s most important to alwayshave it professionally filtered. Using the “INTENZA+” water filter will preventmineral deposits from building up and improve your water quality.1 Remove the small white filter from the water tank and store it in a dryplace.2 Remove the “INTENZA+” water filter from its packaging, immerse it ver-tically (with the opening positioned upwards) in cold water and gentlypress the sides so as to let the air bubbles out.3 Set the filter according to the measurements performed (see previouschapter) and indicated on the base of the filter:A = Soft water – equals 1 or 2 on the test stripB = Hard water (standard) – equals 3 on the test stripC = Very hard water – equals 4 on the test strip