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Sifu,
Which code & edition are you using ?..........In reading Section 608.3 [ from the `09 IPC ],
...how do plan to protect the water supply from contamination before it enters the water
softener ?
608.3 - Devices, appurtenances, appliances and apparatus: "All devices,
appurtenances, appliances and apparatus intended to serve some special function, such
as sterilization, distillation, processing, cooling, or storage of ice or foods, and that
connect to the water supply system, shall be provided with protection against backflow
and contamination of the water supply system............Water pumps, filters, softeners, tanks
and all other appliances and devices that handle or treat potable water shall be
protected against contamination.".......Also, see Section 608.12.
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