6PLUMBING CODESAll plumbing must be completed in accordance withnational, state and local plumbing codes.LAUNDRY TUBSTANDPIPE1-1/2”air gapFLOOR DRAINIn the state of Massachusetts: The Commonwealthof Massachusetts plumbing code 248-CMR shallbe adhered to. A licensed plumber shall be usedfor this installation.AIR GAP REQUIREMENTSA drain is needed for regeneration water (See Figure3). A floor drain, close to the water softener, is pre-ferred. A laundry tub, standpipe, etc. are other drainoptions. Secure valve drain hose in place. Leave anair gap of 1-1/2” between the end of the hose and thedrain. This gap is needed to prevent backflow ofsewer water into the water softener. Do not put theend of the drain hose into the drain.FIG. 31-1/2”air gapDrainHoseDrainHose1-1/2”air gapLOCATION REQUIREMENTSConsider all of the following when selecting an installa-tion location for the water softener.= Do not locate the water softener where freezingtemperatures occur. Do not attempt to treat waterover 120ºF. Freezing temperatures or hot waterdamage voids the warranty.= To condition all water in the home, install the watersoftener close to the water supply inlet, andupstream of all other plumbing connections, exceptoutside water pipes. Outside faucets should remainon hard water to avoid wasting conditioned waterand salt.= A nearby drain is needed to carry away regenera-tion discharge (drain) water. Use a floor drain,laundry tub, sump, standpipe, or other options(check your local codes). See "Air GapRequirements" and "Valve Drain Requirements"sections.= The water softener works on 24V DC electricalpower, supplied by a direct plug-in power supply(included). Provide nearby a 120V, 60 Hz electricaloutlet in accordance with NEC and local codes.= Always install the water softener between the waterinlet and water heater. Any other installed waterconditioning equipment should be installed betweenthe water inlet and water softener (See Figure 4below).= Avoid installing in direct sunlight. Excessive sunheat may cause distortion or other damage to non-metallic parts.Installation RequirementsTHE PROPER ORDER TO INSTALL WATER TREATMENT EQUIPMENTFIG. 4PressureTankCity Water SupplyWell Water SupplyWellPumpOROptionalSedimentFilterWaterHeaterWaterSoftenerUntreated Water toOutside FaucetsHot Waterto HouseCold Waterto HouseDrainHose