Shortcomings of Home Water Filters

Let’s take a look at how some popular consumer water filters fall short of giving us the safe, clean water that we all seek. Granular Activated Carbon – Removes chlorine leaving water susceptible to bacterial growth. Brita Pitcher Filter – Doesn’t guarantee purity, but rather better taste and odor. Zero Water – 0 TDS water is unstable, quickly becomes acidic, can cause calcium to leach out of the teeth or…

Do Filters Like Brita Pitchers Really Work?

It depends what we mean by “work”. The Brita uses Granular Activated Carbon and Weak Acid Cation Resin (WAC) to remove contaminants. The carbon removes chlorine, chloramine, and to some extent organic chemicals such as pesticides, solvents and pharmaceutical leftovers. The WAC will remove cations such as lead, arsenic copper and more.

Home Water Filter Shortcoming #2 – Ion Exchange Resin

Continuing in this series let’s talk about ion exchange resin (IXR). IXR is a staple of the water treatment industry and for the water engineer it serves as an effective tool for treating water for virtually every application imaginable. Much of IR is created from a plastic bead in which chemically active exchange sites are attached to the bead. The exchange sites enable one charged particle to be held on…