Whilst doing the weekly cleaning on the Bianca today I noticed the tube in the tank (with the tiny cone shaped filter on the end) that fits in the black rubber holder for the in-line filter had a lot of black mould looking stuff in.
I wash the tank and tube with detergent once a week and exclusively use Volvic.
I left the tube out and the machine appears to work fine… and I can’t see the purpose of the tube.
Is it needed if not using the in-line filter?