Question about Culligan Under Sink Water Filter
The bottom half of the canister unscrews. These can get stuck fairly tight and you may need some real muscle to get them undone. Looking from the bottom of the canister towards the top it unscrews in the anti-clockwise direction.
Once you get the canister apart it is a simple matter to lift the old filter out, dripping water and scale into a bucket and put a new cartridge in. Generally all domestic undersink units accept a standard 10" cartridge.
Make sure the rubber O-ring is in good condition - give it a wash under the tap with running water. You can use dishwashing detergent but don't put it in the dishwasher or use harsh chemicals. Rinse clean.
And when you tighten the canister, don't over-do it! Firm pressure is enough. The pressure increases over time which is why they can be hard to open.
Depending on your location you should change these filters at least every 12 months.
TIP: To unloosen a stuck canister you can get a plastic wrench from most hardware stores that sell filters for a couple of bucks. Sometimes you can use an auto oil-filter remover and even a leather belt wound around the canister near the top will work too.
If this helps I'd appreciate the rating! Cheers.
Posted on Jul 31, 2010
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Posted on Jan 02, 2017
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The water filter status light, located at the top of the refrigerator
compartment, will help you know when to change your water
Style 1 - Standard status light (on some models)
When the water filter status light changes from green to yellow,
this tells you that it is almost time to change the water filter
cartridge (90% of the filter life has been used). It is recommended
that you replace the base grille water filter cartridge when the
water filter indicator light changes to red OR water flow to your
water dispenser or ice maker decreases noticeably. See
"Changing theWater Filter Cartridge" later in this section.
After changing the water filter cartridge, reset the water filter
status light by pressing the light switch 5 times within
10 seconds. The water filter status light will change from red to
green when the system is reset.
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