WaterBoss Filter Owner’s Manual 6/13/2012 9Installation Steps and Start-Up Procedures, Cont.G. For most installations, install the appliance after the pressure tank or water meter and beforethe water heater unless otherwise recommended. When installing the 900CF Carbon Filterfor well water, place the filter after any water softener appliance unless otherwiserecommended. Contact the HelpLine for further assistance in determining the properinstallation sequence.Water Heaters: If less than 10 feet (3.0 m) of pipe connects the water treatment appliance(s)to the water heater, install a check valve between the water treatment appliance and thewater heater as close to the water heater as possible. Ensure that the water heater has anadequately rated temperature and pressure safety relief valve.H. For outside installations, the appliance should be enclosed so it is protected from theweather.Step 2Test Your WaterA. Contact your water treatment specialist or obtain a report on your water’s quality. Optionally,use the test strips provided.Step 3Turn Off Water SupplyA. Turn off the water supply.B. Open the hot and cold water taps to depressurize the lines.Step 4Connect Water LinesQest fittings are provided to facilitate installation, but theiruse is not required. Be sure to read the Plastic(PVC/CPVC) Pipe Joining Procedure, if using PVC/CPVC.Step 4A: Using Qest FittingsA. Lift and remove the valve cover. (Lift back first)B. Install Qest fittings. Qest connection fittings areprovided with your appliance. Qest fittings provide aconvenient, easy-to-use three-piece assembly for3/4-inch copper plumbing or 3/4-inch CTS CPVCplastic tubing (copper is shown in Figure 2). Ensurethat the three components (1: collar, 2: metal retainingring, and 3: nylon sleeve) are correctly installed insequence on the pipe. (See Figure 2.)Note: Teflon tape or plumber’s putty is NOT necessaryand should NOT be used with Qest fittings.C. Attach the water lines to the appliance in compliancewith all applicable building, plumbing, and electricalcodes. (See Figure 3.) Do NOT overtighten theconnections on the plastic threads.D. Check the arrows on the bypass valve to ensure thatthe water flows in the proper direction.Caution: Do NOT plumb your appliance inbackward.Figure 2: Qest FittingsFigure 3: Connect Water Lines.Note the Bypass Valve.