Cooling Towers & Closed Circuit
Cooling
Dynamic
Descaler® dirt remover, water scale remover,
lime scale remover, rust remover, used in the cleaning of
cooling towers and closed circuit water cooling systems is
most usually accomplished while the water cooled equipment
is online and without the necessity of shut-down. In order
to dissolve all water scale, lime, rust and dirt from the
waterside of your equipment, it is imperative that these
instructions are followed.
Instructions for Dynamic Descaler®
Cleaning
1. When units to be cleaned
are in operation or merely connected with water flowing to
them, shut off make-up water and bleed-off to tower and/or
sump tank.
2. Open
drain valve in bottom of sump tank and lower the
water level to a point where pump still circulates
without cavitating. If pump sucks air, add minimum
amount of make-up water to maintain
circulation.
3. In
order to clean the entire system, including cooling
tower, sump tank, pump piping, and all associated
equipment on the tower while system is in operation,
you must first determine the tonnage of your cooling
tower. Documentation supplied with your tower or
nameplate on the tower should indicate the cooling
capacity, in tonnage.
4.
Please refer to the Sizing Chart (see download) to
compute the proper amount needed.
5.
Slowly add this quantity of Dynamic
Descaler® to the sump pump
over at least a two hour period.
6.
Circulation time should be at least five hours during
which all equipment should be online. However,
anytime thereafter the make-up water can be turned on
and the bleed-off opened and set to remove all of the
dissolved solids from the system.
7. In
order to purge all insoluble from closed circuit
systems, it is suggested that after circulation, the
drain valve should be opened and make-up water added
until all water in system is clear. Close drain and
establish proper bleed-off and
make-up.
8. When
convenient, it is recommended that the sump tank be
drained and flushed and that the strainer screen be
removed and inspected for any insoluble
material.
When
cleaning cooling towers and closed circuit coolers it
is sometimes hard to determine the amount of scale
build-up that has been accumulated over a period of
time. It might be a case where you have a 500-ton
cooling tower and you will need more than the
recommended amount, which is 150 gallons of
Dynamic
Descaler®. The amounts on the
Sizing Chart (see download) are just for the cooling
tower and the closed circuit cooling only, not for
the entire system, (pump piping and all the
associated equipment that is using the cooling
water). For the entrie system, take the tonnage and
multiply by 0.7, which equals the amount of
Dynamic
Descaler® to be used. If you
need technical assistance or have any questions,
please contact us.
