08
09
LIMESCALE WARNING!
HARD WATER WILL CAUSE LIMESCALE BUILD-UP, RESULTING IN
BLOCKAGES THAT WILL CAUSE PERMANENT DAMAGE OR WILL
DECREASE THE LIFE OF YOUR MACHINE. TO PREVENT THIS, DESCALE
REGULARLY AND USE A WATER SOFTENER.
IMPORTANT NOTICE: PRODUCT FAILURE DUE TO THE BUILD UP OF
LIMESCALE IS NOT COVERED BY GUARANTEE.
BRITISH ISLES WATER HARDNESS MAP
Soft
Medium
Hard
STEP 1:
Confirm the exact hardness of the water in your area with your local water company, or use
quick reference map as a guide.
Find your water company on the OFWAT site (ofwat.gov.uk/contact-companies)
and check the water hardness of your area.
If you are unable to establish the water hardness of your area, or require further support,
contact Dualit Customer Services on 01293 652500.
*Treat bottled water as hard water.
STEP 2:
You must use an OSCAR 150 WATER SOFTENING BAG (available at dualit.com) in medium
and hard water areas, but Dualit recommends the use of a water softener in all areas. Follow
the manufacturer’s instructions for use.
STEP 3:
Dualit recommends using Kilrock-Espresso Machine limescale removing solution (available at
dualit.com). Follow the manufacturer’s dosage and safety/handling precautions.
For further assistance, contact Dualit Customer Services on 01293 652500.
• SEE DESCALE INSTRUCTIONS FOR FULL DESCALE PROCEDURE AND
FURTHER DETAILS.
• USER MUST DESCALE USING A SPECIFIC LIMESCALE REMOVING SOLUTION,
COFFEE MACHINE CLEANERS WILL NOT DESCALE YOUR MACHINE.
WATER HARDNESS ACTION FREQUENCY
Hardness
level
CaCO
3
mg/l
Descale
Water
Softener
Slow Coffee
Extraction or Drop
in Steam Output
Soft
0-100
At Least
Once Every
2 Months
or Every
100 Cycles
Replace
Annually
Descale
Immediately
Descale
Immediately
Medium
101-200
At Least
Once Per
Month or
Every 50
Cycles
Replace
Bi-Annually
Descale
Immediately
Descale
Immediately
Hard*
201+
At Least
Once per
Month or
Every 25
Cycles
Replace
Bi-Annually
Descale
Immediately
Descale
Immediately
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