Kamco C20 Manual page 22

SECTION E – FREQUENTLY ASKED QUESTIONS ABOUT DESCALING
Q. Which descaling chemical should I use?
A. This is determined by the type of deposit and the materials of which the equipment to be decaled is constructed.
First determine the materials, as this may eliminate the use of some of the stronger chemicals.
Q. Which is the strongest chemical?
A. These increase in strength from Scalebreaker CG, though SR, FX up to HD.
Q. Which is the best all round chemical to use?
A. Assuming there's no aluminium or galvanised steel within the system we'd recommend Scalebreaker FX.
It is in liquid form for ease of use, is quite strong, and can break down both scale and rust deposits.
It doesn't fume, and may be despatched on most parcels carriers.
Q. How do I know when I have finished descaling?
A. There are various indicators that can be used, and these are described within the earlier section of the manual.
Monitoring the pH value is the best indicator to progress. If the pH reading is static and there is sufficient
strength left in the solution, then descaling has finished.
Q. What effect will Scalebreaker chemicals have on seals and 'O' rings in waterways?
A. O rings and seals are made of many different plastic materials, but generally Scalebreaker FX can be safely used
with O ring and seal materials such as butyl and nitrile rubbers, EPDM, and Viton. These are used in cooling
circuits of mould tools and water-cooled rollers.
Scalebreaker HD may be used if the O rings are EPDM or Viton, but not otherwise.
Q. Can you clear a complete blockage in pipe work?
A. Not always. The built-in flow reverser makes it possible to attack scale from both directions. By attacking scale or a
restriction from both sides it is possible to clean piping which is almost totally obstructed, but if there is a
complete obstruction of compacted debris, then it is difficult to get descaling chemical to the blockage face to
dissolve it. It is always better to carry out descaling before a complete blockage occurs.
Q. What precautions should I take when descaling?
A. 1. When working with acidic descaling chemicals always wear suitable protective clothing and goggles, and check
and observe instructions supplied with descaling chemicals.
2. During descaling, the tank cap should not be screwed on by more than a quarter turn, to allow for the passage
and elimination of the gas evolved during descaling.
3. Caps should be kept securely on all chemical containers whilst not in use.
To avoid splashes, operators should avoid standing directly over the open neck of either chemical containers or
the filling cap of the descaling pump whilst pouring or adding chemicals.
4. When descaling with any acid, some hydrogen gas may be evolved. Hydrogen is a flammable gas, and the
working area should be well ventilated. Avoid smoking nearby, or any other means of ignition.
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April 2022 edition
Kamco Descaling Pump Manual
C20 | C40 | C90 | C210
Kamco Descaling Pump Manual
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