System Disinfection; Disinfection Of Water Conditioners - Autotrol 255 Manuel D'utilisation

SYSTEM DISINFECTION

Disinfection Of Water Conditioners

The materials of construction of the modern water conditioner will not support bacterial
growth, nor will these materials contaminate a water supply. During normal use, a condi-
tioner may become fouled with organic matter, or in some cases with bacteria from the
water supply. This may result in an off-taste or odor in the water.
Some conditioners may need to be disinfected after installation and some conditioners will
require periodic disinfection during their normal life.
Depending upon the conditions of use, the style of conditioner, the type of ion exchanger,
and the disinfectant available, a choice can be made among the following methods.
Sodium or Calcium Hypochlorite
En
Application
These materials are satisfactory for use with polystyrene resins, synthetic gel zeolite, green-
sand and bentonites.
5.25% Sodium Hypochlorite
These solutions are available under trade names such as Clorox*. If stronger solutions are
used, such as those sold for commercial laundries, adjust the dosage accordingly.
1. Dosage
A. Polystyrene resin; 1.2 fluid ounce (35.5 mL) per cubic foot.
B. Non-resinous exchangers; 0.8 fluid ounce (23.7 mL) per cubic foot.
2. Brine tank conditioners
A. Backwash the conditioner and add the required amount of hypochlorite solution to
the well of the regenerant tank. The regenerant tank should have water in it to
permit the solution to be carried into the conditioner.
B. Proceed with the normal regeneration.
*Clorox is a trademark of the Clorox Company.
Calcium Hypochlorite
Calcium hypochlorite, 70% available chlorine, is available in several forms including tablets
and granules. These solid materials may be used directly without dissolving before use.
1. Dosage
A. Two grains (approximately 0.1 ounce [3 mL]) per cubic foot.
2. Regenerant tank conditioners
A. Backwash the conditioner and add the required amount of hypochlorite to the well
of the regenerant tank. The regenerant tank should have water in it to permit the
chlorine solution to be carried into the conditioner.
B. Proceed with the normal regeneration.
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