Change the Filter as Needed
You'll need to change the cartridge at intervals recommended by the manufacturer. In the case of the whole-house filter, the handle used to turn the inlet valve doubles as a tool to remove the filter tank when it's time to change filters.
Turn the valve handle to the "off" position.
Use the handle to loosen and remove the tank from the housing. Have a bucket handy to catch any water.
Pour the water from the tank and discard the old cartridge. Wipe the inside of the tank with a clean cloth.
Insert a new cartridge and reattach the tank to the housing. Return the valve to the "filter" position.
Open one of the faucets slowly, and allow the water to run for a few seconds to allow trapped air to escape.
Learn how installing a water filtration system can add value to your home at HGTV's FrontDoor.com.