This review is by Homebrew Finds Contributor Brad Probert. Brad is an engineer, expert homebrewer and experienced reviewer. Grab a link to Brad’s website at the end of this review.
Reverse Osmosis 3-Stage Filter Review
You can take just about any aspect of your homebrew process and find someone to speak passionately about how “vitally important” that step is in the process of making your best beer. We all have our own personal filters (no pun intended) on which advice makes its way through the noise and leaves a lasting impression on us. For me, it’s been water. I’ve heard about the importance of brewing water from multiple sources. Even those doing blind taste tests on different brewing variables, or writing about shortcuts to your brewing process point to the importance of your water chemistry.
The bulk of my all-grain brewing experience has been using distilled water and adding brewing salts to get my desired water profile. I was satisfied with the end results of the beer, but I definitely was not satisfied with the task of buying 10 – 12 gallon jugs of distilled water from the grocery store (or more than one store because they were out). So I researched home water filtration options.
Get the Gear: Whole House 3-Stage Water Filtration System, 3/4″ port with 2 valves and extra 3 filters set affiliate link, note that multiple variations of this product may be available, as such a different version may appear at this link
I assumed reverse osmosis (RO) would be the filtration process of choice. However, I was shocked to find that the “standard” RO system created around 4 gallons of waste water for every gallon of RO water. Everyone told me, “water your house plants with it”. I don’t have houseplants. With kids, dogs, and a cat, I figure I’ve got enough things to take care of around the house without having to store water in buckets and find creative ways to use it. The idea of dumping 40 gallons of water down the drain to get 10 gallons of brewing water seemed ridiculous to me so I looked for other options. What’s more, the flow rate of the RO systems dictated you’d have to plan ahead to gather your brew water the day before over the span of several hours, and I really wasn’t interested in making my brew process longer.
Our city water has good taste and the water report says it doesn’t have any mineral content above the recommended levels for brewing. The main thing I wanted out of a water filter system was to avoid the occasional chlorine aroma I get.
I settled in on a 3-stage water filtration system from Reverse Osmosis Revolution. Although their name says Reverse Osmosis, this 3-stage filter system is not an RO system. The first stage has a 5 micron sediment filter to filter out things like dirt, dust, sand, etc. Being on city water, I don’t expect these type of contaminants, but it is still a good process step to help protect the downstream filter stages. The second stage is a granular activated carbon filter that’s targeted to remove chlorine and VOCs (volatile organic compounds) which can give you undesirable odors. The third stage is another carbon filter, this time a carbon block filter. It’s also designed to address odor-causing factors in your water, it just goes about it in a slightly different way.
The sediment filter has a life of 3 – 12 months, depending on the level of sediment in your water. The carbon filters both have a life of 6-12 months, at which point the carbon is expected to be used up from the chemical reactions of its carbon-fueled filtration process.
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