Things You'll Need:
- Bath Towels
- Replacement Water Filters Cartridge
- Silicone Lubricants
- Sump Wrenches
-
Step 1
Close the cold-water water valve that feeds the filter.
-
Step 2
Release any pressure in the line by turning on the cold- and hot-water faucets; leave them open. Some filter models also have a vent valve on top of the filter that you press to release pressure.
-
Step 3
Turn the sump clockwise using the sump wrench that came with the filter to remove it. Be careful: It's most likely full of water.
-
Step 4
Locate and set aside the O-ring seal.
-
Step 5
Remove and throw away the used filter cartridge.
-
Step 6
Clean the inside of the sump with hot, soapy water and rinse it very well. (Remember that you turned the water off at the sink you're working on.)
-
Step 7
Insert the new filter cartridge in the sump. Check the label on the filter - some are designed to be installed in a specific direction.
-
Step 8
Grease the O-ring with clean silicone lubricant. Be sure that it seats completely in its groove.
-
Step 9
Line up the sump with the filter head and screw it back on.
-
Step 10
Tighten the sump by turning it counterclockwise.
-
Step 11
Repeat these steps for the other sump if you have more than one on the filter unit.
-
Step 12
Stick the reminder label that typically comes with the filter onto the sump.
-
Step 13
Open the water valve slowly and fill the filter. If you have a vent valve, hold it down while the filter is filling to keep air out of the line.
-
Step 14
Turn off the faucets and check the unit for leaks.
-
Step 15
Run the water for 5 minutes to clear out carbon particles that have settled in the cartridge.







Comments
waterstuff said
on 9/16/2009 My company typically recommends filter changes at least annually on almost all filters. Sometimes you may need to change it more frequently if it plugs up, or if it stops performing properly. This annual change will help to minimize the chance of bacteria growth on the filter.
The main exception to this rule is a reverse osmosis membrane filter, which is somewhat self cleaning and will typically last 3+ years if adequate pretreatment is supplied.
lilly777 said
on 1/31/2009 hOW OFTEN DO YOU RECCOMEND REPLACING THE FILTER?