Neutralising
Crystals are
added to the CLEARFLOW® tank after the final power
flush 'dump' (when water leaving the dump hose is crystal
clear), and circulated briefly to ensure neutralisation
of any residues after use of Power
Flush FX2.
Application & usage:
Subsequent
to the descaling operation, drain off the spent descaling
chemical, and flush the descaled equipment with fresh
water. Many natural waters are slightly alkaline, and
water flushing may be all that is required.
Alternatively,
circulate a 0.5 to 1% solution of NEUTRALISING CRYSTALS
through the equipment for 10 minutes, drain, and then
flush with clean water once more.
The
spent descaling solution may be neutralised prior to
disposal by using NEUTRALISING CRYSTALS. It is suggested
that the spent descaling solution is collected in plastic
containers, leaving at least a quarter of the container
volume as free space.
Carefully
add NEUTRALISING CRYSTALS to the solution through a funnel
until the pH is brought up to a value of 6 to 7, and
then flush to drain. A pH meter, or pH indicator paper,
may be used to check the pH of the descaling solution.
(Once the pH has risen to 3.5 to 4, its ability to dissolve
limescale and corrosion deposits is effectively spent
- note that the pH of Ribena and Coca Cola are approximately
2.6).
If
foaming of the solution,
as it is being neutralised, is a problem, add a few ml.
of FOAMBREAKER to the
solution.
Neutralising
Liquid is an alkaline compound for neutralising
descaling chemicals before disposal, and flushing out
boilers and heat exchangers after descaling.
Application & usage:
Neutralising
acidic descaling chemicals: Slowly add
neutralising liquid to descaling solution until pH
or litmus paper show solution as neutral or mildly
alkaline. (Red litmus turns blue=pH above 7).
Flushing
out boilers / heat exchangers after descaling: Use
at a dosage rate of one litre of neutralising liquid
per 100 litres water. The resultant solution should
be circulated through the descaled equipment for a
few minutes.
CAUTION: This
liquid is an alkali, and gloves and goggles should be worn
when handling. Splashes of solution into the eye should
be irrigated with large quantities of clean fresh water.
Packaging:
• Carton
of 12 x 1 litre