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DIY: How to Add an UV Light to Countertop RO System as Stage-0

  1. Remove the feed water line from the Stage-1 filter by disconnecting the gray fitting elbow Point A connector at the stage 1 filter.  To remove the gray fitting, simply press in and hold down on the “Gray” Collet ring at the base of the gray plastic fitting.  Then pull to disconnect the gray elbow from the filter tubing.  See figure.1
  2. Remove the short Red tubing from Stage-1 filter.
  3. Cut the 2 Plastic straps on the RO system.
  4. The UV light comes 2 plastic “C“ Clips.  Attach both clips onto the stage 4 filter.
  5. The UV light also comes with a White Tubing pre-installed at Point C.  See figure.2
  6. Connect the opposite end of the white tubing at Point C to Point D on the Stage 1 filter.  See figure.2
  7. An extra tubing was provided with the UV Light.  Connect one end of the spare tubing to Point B on the UV light.  Make sure an insert and nut are used.
  8. Connect the other end of the tubing of Point B to the gray fitting elbow that was previously connected to the stage 1 filter (Point A).  You can cut the tubing to a shorter length if needed.
  9. Clip the UV light onto the 2 “C” clips that is attached to the stage 4 filter.
  10. Now the feed water should go from your faucet to the UV light, and then into the Stage 1 sediment filter.

Figure 1 (back view)

Figure 2 (Font View)

Point Identifications:

  • Point A: Feed water gray elbow connector. Labeled “Connect to Stage-1”
  • Point B:  Inlet connection on UV housing.
  • Point C:  Outlet connection on UV housing.
  • Point D: Inlet connection on Stage-1 Sediment filter.
  • Point E: Pure water output connection on Stage 4 Carbon filter.
  • Point F:  Brine water output line.  Gray elbow connector labeled “ Connect to USA-420 “

If the issue was not addressed, please contact us at:
800-880-4808, or
techsupport@freedrinkingwater.com

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