see my "formula" posted in the colour forum for "Removing developer tar from a Nova deep tank".Originally Posted by bmac
For general clean-ups I tend to use a vinegar cleaner from the drugstore and sometimes an orange or citrus based cleaner.
Nova Darkroom in the UK additionally reccomends the use of Chorline Bleach to clean the water tanks. This is NOT a good idea for Jobo processors. The NOVA processors have glass heating elements and use acryilc plastics. Most other processors don't.