Tech Talk: Water Filter Stages | Hydroviv
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Tech Talk:  Water Filter Stages

Tech Talk: Water Filter Stages

When people do their research on water filters, the topic of "stages" often comes up.  Water filter manufacturers try to use this spec to convince you to buy their product, but do you really know what  it means?

Simply put:  The number of “stages” refers to the number of things done to purify water within a filtration system.  Some examples of “stages” include size exclusion filters, granulated activated carbon, ion exchange … things like that.   In theory, each stage is present to improve the water’s quality.

With that said, It makes some sense that you would want the maximum number of stages to really clean up your water, right?

Sometimes Yes.  Sometimes No.  


If all stages are doing something useful… then “the more, the better”... but unnecessary or ineffective stages just slow down your filter's flow rate and drive up the price of the system!

Because Hydroviv's Shower Filters are designed to handle "tough tap water"  we use 4 stages of filtration.  We use graduated size exclusion stages, and multiple stages that use advanced sorbent materials.


clogged faucet aerator

If your water filter doesn't catch the particles, your faucet's aerator certainly will!

The purpose of  size exclusion is to catch tiny particles that would otherwise "gum up" or interfere with the sorbent materials, or could clog up your shower head or sink's aerator (see picture).  The sorbent materials are responsible for removing impurities from the water.   The end result is a highly advanced shower purification system that purifies the toughest tap water, and doesn't slow down your shower's flow rate!  

A lot of people are asking "stage-related" questions about our upcoming drinking water purification system.  Let's just say... that we can't talk about it until the patent is filed... (Can you tell that we are excited?)

If you have any questions about water filtration stages (or anything else), feel free to leave a comment or email info@hydroviv.com.