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Table 4.4
Dry Chemical Cleaners
CLEANING PROCEDURE
STEPS
1. With the RO machine running, open the Clean-In-Place (CIP) permeate valve. After this
valve has been opened, close the permeate service valve. Permeate water will flow into
the CIP tank. Allow the water to run through the CIP tank and the CIP tank drain valve
for a few minutes to ensure the tank is rinsed thoroughly. After a minute or so, close the
CIP tank drain valve. The CIP tank should begin to fill with RO permeate. When the CIP
tank has filled to the indicated full line, turn the ON/OFF switch on the RO machine to the
OFF position.
2. While the machine is OFF, open the CIP inlet valve. Divert the permeate and concentrate
streams to the cleaning container for recirculation. Ensure that the pre-filter is clean. A
CIP pump (supplied with DLX models only) is recommended to supply feed pressure into
the machine.
3. To circulate the cleaning solution through the machine with suction, remove the CIP plug.
Use a non-collapsible suction hose or pipe to feed the machine.
NOTE
: Do not allow the machine pump to operate without concentrate flow. If pump
prime is lost while cleaning on suction, positive inlet pressure is required to
reprime. No air should be sucked into the inlet line during suction cleaning.
20
Description
Dry acid-surfactant for cleaning TLC, PA
and CA membrane elements.
High pH alkaline cleaner for PA membrane
elements. Recommended for situations
where microbial fouling is a problem. DO
NOT use on CA membrane elements.
Cleaner intended to deal with sulfate
or iron precipitation fouling. Recommended
for CA and PA membrane elements.
Cleaner
Osmo AD-20
Osmo AK-110
Osmo ET-70
Part Number
1155420
1155421
1155422
1155423
1155416
1155417
1155418
1155419
1155424
1155425
1155426
1155427
Quantity
8 x 4 lb. pkgs/case
45 lb. pail
100 lb. key
300 lb. drum
8 x 4 lb. pkgs/case
45 lb. pail
100 lb. key
300 lb. drum
8 x 4 lb. pkgs/case
45 lb. pail
100 lb. key
300 lb. drum