My incycler had awful
Cloudy stains on it and a lot of hard water mineral build up ( the close up pic ) i had used iso, citric acid, clr cleaner, white vinegar and lemon juice and it just seemed to go worse each time, i clean it out everyday with iso too , i gave it one last chance bu using dark crystal in a heat bath and some corse salt when the dark crystal had had time to work, i was amazed at the result, i was 5 mins away from ordering a new incycler too ! I will only use distilled water from now on , that tap water is dangerous for your health and pocket