- Fill A Bucket With Water For Rinsing.
- Turn Off Valves Before And After Filter.
- Release Pressure From Filter By Pushing Down On Pressure Relief Button On Top Of Filter Housing.
- Unscrew Filter Housing.
- Remove Old Filter And Rinse Out Housing.
- Be Careful Not To Lose Black O Ring.
- Be Sure O Ring And Part Of Filter Top Where O Ring Seals Is Clean.
- Fill Housing About ½ Full Of Standard Household Bleach.
- Screw Housing To Filter Top.
- Open In And Out Valves.
- Run Each Cold Water Faucet In House, (One At A Time), Until You Smell The Bleach, Then Turn It Off.
- Run Hot Water Until You Feel Bleach Has Been Pulled Into The Water Heater.
- Close In And Out Valves.
- Repeat Steps 3-7.
- Put New Filter In Housing.
- Tighten Housing.
- Open Valves.