GE Autotrol Performa ProSoft 960 Series Installating And Operation Manual

Contents

31Disinfection of Water ConditionersThe materials of construction of the modern waterconditioner will not support bacterial growth, nor will thesematerials contaminate a water supply. However, thenormal conditions existing during shipping, storage andinstallation indicate the advisability of disinfecting aconditioner after installation, before the conditioner isused to treat potable water. In addition, during normal use,a conditioner may become fouled with organic matter orin some cases with bacteria from the water supply.Thus every conditioner should be disinfected afterinstallation, some will require periodic disinfection duringtheir normal life, and in a few cases disinfection with everyregeneration would be recommended.Depending upon the conditions of use, the style ofconditioner, the type of ion exchanger, and the disinfectantavailable, a choice can be made among the followingmethods.Sodium or Calcium HypochloriteApplicationThese materials are satisfactory for use with polystyreneresins, synthetic gel zeolite, greensand and bentonites.5.25% Sodium HypochloriteThese solutions are available under trade names such asClorox Bleach*. If stronger solutions are used, such asthose sold for commercial laundries, adjust the dosageaccordingly.1. DosageA. Polystyrene resin: 1.2 fluid ounces per cubic foot.B. Non-resinous exchangers: 0.8 fluid ounce percubic foot.2. Regenerant tank conditionersA. Backwash the conditioner and add the requiredamount of hypochlorite solution to the regenerantwell of the regenerant tank. (The regenerant tankshould have water in it to permit the solution to becarried into the conditioner.)B. Proceed with the normal regeneration.Calcium HypochloriteCalcium hypochlorite, 70% available chlorine, is availablein several forms including tablets and granules. These solidmaterials may be used directly without dissolving beforeuse.1. DosageA. Two grains (approximately 0.1 ounce) per cubicfoot.2. Regenerant tank conditionersA. Backwash the conditioner and add the requiredamount of hypochlorite to the regenerant well ofthe regenerant tank. (The regenerant tank shouldhave water in it to permit the chlorine solution tobe carried into the conditioner.)B. Proceed with the normal regeneration.

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