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Routine Maintenance Pre-Filtration Maintenance: The pre-filters should be changed approximately every 6-12 months, more often in high use applications. The sediment filter removes dirt, sand, and other debris down to the 5 mi- cron range. Regardless of how many gallons or how the filter looks, regular replacement is important in order to keep the system sanitary. The high capacity carbon block reduces chlorine and other chemicals The carbon block has an estimated capacity of 6 to 12 months but more frequent replacement may be needed in high use applications. Unplug the power if applicable and turn off the water supply to the system and any exter- nal tanks. Depressurize the water. Use the supplied filter wrench to remove the filter hous- ings from the unit. Remove and dispose of the used pre-filters. Use proper sanitary proce- dures while replacing the filters. Do not touch the filters at any time. Use disposable sanitary gloves. It is recommended that the filter housings be cleaned and sanitized with a 50 ppm chlorine solution during the filter change-out procedure and that the 0-ring be replaced, cleaned, and lubricated with an appropriate silicone 0-ring lubricant. Install new filters and use the wrench to gently tighten the filter housings. DO NOT OVERTIGHTEN the filter hous- ings and do not use a petroleum based lubricant on the 0-ring. R.O. Membrane Maintenance: The R.O. membrane should be changed no less than every 3-5 years. If the water quality or production rate falls below acceptable tolerances, the membranes should be replaced. It is recommended that the membrane housings be sanitized with a 50 ppm chlorine solution during the filter change-out procedure and that the 0-ring be replaced, cleaned, and lubri- cated with an appropriate silicone 0-ring lubricant. Lubricate the membrane 0-rings and lip seal with silicone 0-ring lubricant. Install the new membranes and gently tighten the filter housing caps. DO NOT OVERTIGHTEN the filter housings and do not use a petroleum based lubricant on the o-rings or lip seal. Post Filtration Maintenance: The post filters should be changed approximately every 12 months. More often in high use applications. Post filtration is typically a carbon filter but many other types of filters can be used. *PACT/LK/LIME, Calcite remineralizing, deionizing, and many others are available. Each filter type has specific parameters that would be used to determine the frequency of change-outs. Carbon Block: Change every 12 months. Calcite/Remineralizing: Change when tds increase or pH correction is no longer achieved or every 6-12 months. eionization: Change every 3-6 months or when the conductivity/resistivity of the product water no longer meets specifications. or most non critical application 1-2 ppm TDS is considered acceptable. ACT/VC/LIME: Change every 6-12 months or when the pH drops below 7.8 or the ORP is above 0. tional UV Maintenance: The UV bulb must be changed and the quartz sleeve cleaned no less than annually. Reset the count- down timer if applicable when the bulb is replaced. --. tional Quantum Sanitizing: The Quantum filter should be changed annually or when the gallon rating has been achieved. 04 10