How Long Does A Water Filtration System Last?

How long do reverse osmosis systems last?

Between 10 and 15 years
Reverse osmosis systems usually last between 10 and 15 years. While the systems themselves have a long lifespan, the RO membrane and filters need replacing periodically. The prefilters and post-filters should be changed every 6 months to 1 year. Depending on your water conditions, the RO membrane should be replaced every 2-4 years.

How long do well filters last?

The water filter itself can last pretty long. But the cartridges inside the filters housing have a lifespan of six to twelve months depending on your usage. And the tanks have a lifespan of three to ten years depending on its size. It will be a good decision to get a large tank because they last longer than the smaller tanks.

What Happens When a Water Filter Expires?

When is the final time you changed your water filter? 6 days, 6 months, 6 years? They say nothing lasts forever (well, nearly nothing), and for great reason. For those that have done their research, invested time, energy and money into purchasing a water filter to protect their domestic — you likely know that water filters have an expiry date. The more you delay replacing your water filter past its expiration date, the more you expose your domestic to all sorts of undesirable contaminants.


Stocking up on fresh filters means that you get continued enjoyment of clean, healthy water around your whole house. But how do you know which filter to purchase? Let’s take a quick look at the differences between each filter type:

Activated Carbon: Acts like a magnet, pulling contaminants closer to them and away from the water supply. This helps to reduce pharmaceuticals, herbicides, pesticides, and VOCs.
Catalytic Carbon: Targets chlorine and chloramines.
Ion-Exchange or Reverse Osmosis: Acts as a screening mechanism to trap and prevent bacteria smaller than 0.01 microns from entering the water supply. This helps to eliminate heavy metals like lead and mercury and remove fluoride.
Absolute Sub-Micron Mechanical Filtration: Captures asbestos and chlorine resistant cysts like cryptosporidium and giardia.

Sign in to leave a comment