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To ensure the safe and efcient operation of your HotCup™ water dispenser it is
important to descale it regularly. The harder your water the more regularly it will need
doing. Your water company should be able to tell you how hard the water is in your
area. Untreated scale deposits prevent the element conducting heat efciently therefore
wasting electricity. Scale can also cause your HotCup™ water dispenser to malfunction or
even cause premature failure.
Descaling using a proprietary descaling product
1. Fill your HotCup™ water dispenser to the MAX ll level and place an empty cup
on the drip tray. Set the on/off switch to the on position and wait for the water to be
dispensed into the cup.
2. Add a citric acid-based descaling product to the hot water in the cup and stir.
3. Tip the contents of the cup into your HotCup™ water dispenser and close the lid.
4. Place the empty cup on the drip tray and set the on/off switch to the on position.
5. Wait for the water to be dispensed into the cup.
6. Discard the water from the cup.
7. Repeat steps 4, 5 and 6 until the water level is at the MIN mark. Open the lid and
empty any remaining water into the sink. Rinse your HotCup™ water dispenser by
lling it with clean water and emptying it into the sink (see Emptying your HotCup™
water dispenser on page 8).
Fill with fresh water to the MAX ll level and place an empty cup on the drip tray.
8. Set the on/off switch to the on position and wait for the water to be dispensed into the
cup.
9. Discard the water in the cup. Repeat steps 8 and 9 until the water level is at the MIN
mark. Open the lid and empty any remaining water into the sink (see Emptying your
HotCup™ water dispenser on page 8).
Descaling using vinegar or citric acid
1. You can use ordinary vinegar (white or malt) or citric acid to descale your HotCup™
water dispenser. Inexpensive, ordinary vinegar can be purchased in large bottles
from any supermarket. Citric acid can be bought from pharmacies, home brewing/
winemaking suppliers or on-line retailers.
2. If you are using vinegar, make up a solution of 1 cup of vinegar to 1 cup of water. If
you are using citric acid, mix 30g of the citric acid with 500ml of water.
3. Pour the solution into your HotCup™ water dispenser, close the lid and allow it to
stand for 1 hour.
4. Cycle your HotCup™ water dispenser (as described in steps 4-6 above) until the
level is at the MIN mark. Open the lid and empty any remaining solution into the sink.
Rinse several times by lling it with clean water and emptying it into the sink.
5. Fill your HotCup™ water dispenser with fresh water to the MAX ll level and place an
empty cup on the drip tray.
6. Set the on/off switch to the on position and wait for the water to be dispensed into the
cup.
7. Discard the water in the cup. Repeat steps 6 and 7 until the water level is at the MIN
mark. Open the lid and empty any remaining water into the sink.
8. Finally, rinse your HotCup™ water dispenser several times with clean water.
safety and efficiency