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MAINTENANCE MANUAL
Mirage technical manual
page 24 of 65
Check water treatment system
All tap water contains dissolved elements, one of which is calcium carbonate. While an increase in
temperature normally leads to better dissolution of elements, precipitation of calcium carbonate (scale)
is favoured by high temperatures. Scale in your machine will inevitably lead to costly repairs and may
eventually cause your machine to break down.
Caution!
Do not use descaling solution (or e.g. vinegar), as you would with a consumer coffee brewing
apparatus. It is very tedious to flush the descaling solution completely out of the system and only very
little remains will make your coffee taste bad. Furthermore, experts are not in agreement over the
possibility whether the descaling agent may or may not cause corrosion within the machine.
Calcium carbonate is taken out of your tap water and stored in the water softener (also called: ion
exchanger) which will decrease its proper functioning. Some ion-exchange water softeners can be
regenerated by flushing it with salt, in others the cartridge has to be exchanged.
How quickly the functioning of your water softener decreases depends mainly on the quality of your
tap water and the amount of use. We advise you to check your water softener every month for proper
operation. For maintenance on your system we refer to the manufacturer. Normally, a cartridge filter
should be replaced at least every 12 months to prevent bacterial growth.
Note!
Our machines do not show noticeable scaling for years provided that the water softener of these
machines is regenerated as often as needed.