Fridge freezer inline water filters

Soldato
Joined
13 Feb 2012
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5,900
Do you really need to buy specific filters for your fridge/model or will any of them do the job? Do you just need to be aware that the sensor for telling you when your filter needs changing wont work?
 
I thought those "sensors" were just counting down the time? Either way, they're just a tool for keeping the cash flowing into Brita's pockets. We've had the same filter on for over a year and it's still working fine as far as I can tell. Might not be cleaning quite as well as a brand new one, but balls to replacing them every 2 months.

In other words, just get one that's listed as a compatible for your model, forget whether it's got a "sensor" or not. If you're bothered you can set up reminders on your phone.
 
I believe the filters have a number of litres they are good for. After that I think they are still safe to use but won't be doing much filtering.

The "sensors" are usually just a countdown timer.

So how often you need to replace them depends on how much you use them.

I have also come across 3rd party alternatives before which could save you some money.
 
Keeping them multiples longer than their intended life isn't wise.
If something is filtering chemicals and metals it will saturate at a certain point, so all you are doing is keeping a chemical saturated object dangling in your water feed. Eventually (concentrated) bits of it are going to start shedding back into the water, somewhat defeating the purpose of ever having it.

Might as well buy bottled water that has already been filtered to a certain consistent standard.
 
Keeping them multiples longer than their intended life isn't wise.
If something is filtering chemicals and metals it will saturate at a certain point, so all you are doing is keeping a chemical saturated object dangling in your water feed. Eventually (concentrated) bits of it are going to start shedding back into the water, somewhat defeating the purpose of ever having it.

Might as well buy bottled water that has already been filtered to a certain consistent standard.

How will concentrated bits of it start "shedding" back into the water you are drinking when there's still a filter in the way?

All that happens is that the flow rate from top to bottom reduces. There are no sudden deposits of metals and chemicals that miraculously jump into your drinking water.
 
How will concentrated bits of it start "shedding" back into the water you are drinking when there's still a filter in the way?

All that happens is that the flow rate from top to bottom reduces. There are no sudden deposits of metals and chemicals that miraculously jump into your drinking water.

This is not how a water filter works. They typically use carbon granules or blocks to "trap" molecules. Once they get saturated they do absolutely nothing. And then you've got saturated carbon granules full of junk just sat there. They can build up further and then flake off. The filter doesn't stop bits with an impenetrable wall, it simply houses carbon granules that attract the molecules and metals.
 
I thought they got trapped inside the carbon?
it's like saying carbon pellets in a carbon filter will start letting off the smells they have been absorbing if you don't change them
 
They do, but once it's saturated you'll get build up on the outside of the granules too. Its not something i would personally worry about but if you're in the frame of mind that you need the filter then it doesn't make sense to over use your existing one, especially when its difficult to measure how noneffective it is at any given time.
 
cheers for the feedback. Picked up a couple of generic inline filters at a 1/4 the cost of the model specific ones. I shall let you know if it was a good or bad choice!
 
I've been using generic ones for my fridge/freezer for 5 years, changed each year, no difference to using the manufacturer ones except price (some even lasted longer).
My F/F sensor goes off every 4 months, I reset it twice, then replace on the 3rd go, hence the yearly change.
 
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