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Preparing to Install the SW200XL Water Conditioner Ultra

If you have any doubts about your DIY skills, please be sure to have your SW200XL Water Conditioner Ultra installed by a licensed professional plumber. For a detailed installation guide see the SW200XL Water Conditioner Installation Instructions

What comes in the box?

  • The SW200XL housing unit
  • A black/orange drain valve used to flush or rinse out the unit (at least once a month for best performance).
  • (Optional) Two 1″x3/4″ adaptors will also be included if you have requested them
  • Mounting bracket and seal for hanging the unit

Installation Tips

  • Remember, you are treating and filtering the entire incoming water supply for the whole house
  • Choose an easily accessible frost-free location near the main water supply for your home
  • You want to ensure that it’s easy to drain and clean the Conditioner once a month.
  • A hose can be attached to black/orange drain valve to make draining and rinsing easier
  • Verify the size of the water piping thread on which the filter will be installed.
  • The SW200XL unit comes with 1″ inlet/outlet as standard.
  • If your pipes are not the size of the filter thread you will need to use adapters.
  • The threads needs to be covered by a thread sealant for use with drinking water before making the connection.
  • We have found it best to use both Teflon tape and liquid Teflon.
  • On the top of the filter unit, you will see two small arrows to show the direction of the flow of water.
  • Before first use, flush the unit by opening the valve for 60 seconds (use a bucket underneath to catch the water)

Tools or Optional Supplies Required

You’ll need the following tools if you choose to make this a DIY project.

  • A drill and assorted drill bits
  • 2 adjustable wrenches, different sizes
  • A tubing cutter
  • Bucket to catch any water remaining in main supply pipe after shut off
  • Adapters may be required on each side of the Conditioner to attach your pipe size.
  • Optional – Shut-off valves

Installing the SW200XL Water Conditioner

  • Turn off the main water supply and drain the system.
  • Choose the new location for the conditioner unit and mark it. If located outside the house, choose a location that is safe from frost and extreme weather. Keep in mind you’ll have to drain and service the conditioner once a month so choose a location you can reach comfortably.
  • Cut the pipe using a pipe cutter.
  • Optional but recommended – install a shutoff valve for water entering the filter and one for water leaving the filter
  • Install the compression nut and plastic or brass fittings according to the manufacturer’s instructions. It’s recommended to use pipe thread tape on the fittings for better sealing.
  • Install the conditioner with the “in” and “out” ports facing the right directions.
  • Turn on the main water supply and check for leaks.
  • The installation is complete. Every time you need to drain and clean the conditioner, turn the valve on the bottom of the filter unit.

Watch “Ask This Old House” plumbing and heating expert Richard Trethewey as he installs a typical Whole House Water Filter