The Secret to Perfect Home Brew: Top Aussie Creators Test Sentry RO Systems
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When home brewers talk about taking their craft to the next level, the focus usually lands on malt profiles, hop additions, or specialized yeast strains. However, water makes up roughly 90% to 95% of your final brew. If your tap water chemistry fluctuates or contains hidden municipal additives, even the most meticulous recipe can fall flat or develop off-flavours.
Recently, two prominent Australian home brewing channels reached out to Sentry Water Filters to upgrade their setups: Pierre from Simple Home Brew and CJ from Fair Drinkum Brews. Both creators needed a reliable, high-purity water baseline to eliminate chlorine, chloramines, and heavy minerals from their brew day routines.
Here is a look at why tap water holds back home brews, how these creators tested our systems, and which Sentry Reverse Osmosis setup is right for your home brewery.
Why Mains Tap Water Falls Short for Home Brewing
Many home brewers start out using basic inline hose filters or standard carbon blocks connected to their main tap line. While a simple carbon filter takes away strong chemical smells and free chlorine, it leaves behind dissolved minerals, heavy metals, fluoride, and chloramines.
Chloramines—widely used across Australian municipal water networks—do not evaporate like chlorine and easily pass through basic carbon filters. When mixed with grain during mashing, chloramines form chlorophenols, which leave a distinct medicinal or plastic-like off-flavour in your finished beer.
Furthermore, municipal water chemistry fluctuates seasonally based on dam levels, rainfall, and treatment plant adjustments. To achieve professional consistency, brewers need a clean, zero-mineral baseline.
Selecting the Right Pre-Filter: High Volume & Chlorine Reduction
When selecting an RO or filtration system for brewing, we strongly recommend choosing a high-volume setup with high chlorine and chloramine reduction capabilities as one of your carbon filter stages.
A standard carbon block can quickly become saturated when processing the large volumes of water required on brew day. Saturated filters allow chlorine or chloramines through, which damages the delicate RO membrane and ruins the batch. Utilizing a high-capacity catalytic carbon filter ensures heavy chemical loads are completely stripped away before reaching the membrane, maintaining fast flow rates and long-term protection.
Pierre (Simple Home Brew) Tests the Sentry PRO-3-DJ (RO/DI System)
Pierre set out to upgrade his studio set-up using the Sentry PRO-3-DJ Reverse Osmosis Deionisation (RO/DI) System. Designed for high-volume portable purification, this multi-stage unit combines:
- High-Capacity Catalytic Carbon Block (CTO): Designed for heavy chlorine and chloramine removal before water reaches the membrane.
- Reverse Osmosis (RO) Membrane: Filters down to 0.0001 microns, forcing water molecules through a semi-permeable membrane while washing away salts and metals.
- Food-Grade Deionisation (DI) Resin: Polishes the water leaving the membrane, trapping remaining trace ions to deliver a 100% pure baseline.
Live TDS Test Results
Pierre plumbed his PRO-3-DJ system directly under his bench and tested his municipal mains supply against the Sentry RO output using a Sentry Total Dissolved Solids (TDS) Meter:
| Water Source | TDS Reading (Parts Per Million) | Chemical & Flavor Profile |
|---|---|---|
| Unfiltered Mains Tap Water | 49 PPM | Noticeable chlorine/chloramine scent; variable mineral salts present. |
| Sentry PRO-3-DJ Water | 0 PPM | Pure, neutral baseline; 100% reduction in total dissolved solids. |
As demonstrated in Pierre's live testing, the PRO-3-DJ dropped the mineral content from 49 PPM down to 0 PPM, creating an absolute "blank slate" for mineral building.
CJ (Fair Drinkum Brews) Reviews the Sentry PRO-4-G System
For brewers looking for high performance at an accessible price point, CJ put the Sentry PRO-4-G Portable Reverse Osmosis System through its paces.
The PRO-4-G model features a post-membrane coconut carbon filter, engineered to remove 100% of fluoride, 99.99% of bacteria, and roughly 96% of overall impurities.
Key Highlights from CJ's Review:
- Versatile Tap Connections: Includes quick-connect attachments for outdoor hoses, laundry taps, or bathroom faucets—allowing CJ to connect directly to his outdoor garden setup.
- Efficient Wastewater Ratio: Collected 33 Litres of purified brewing water while generating just over 20 Litres of wastewater, which CJ recycled for gardening and laundry.
- Smart Brew Day Multitasking: Filling a 33L container took just under 2 hours, giving CJ the perfect window to sanitize equipment, weigh grains, and prepare fermentables.
- Overall Rating: CJ gave the unit 4.8 out of 5 stars for its performance, affordability, and ease of use.
Why a "Blank Slate" Water Profile Changes Everything
Whether you choose Pierre's PRO-3-DJ setup or CJ's PRO-4-G unit, starting with pure RO water gives you total control over your recipe:
- Precision Mineral Building: Whether you are crafting a crisp Czech Pilsner requiring soft water or a hop-heavy West Coast IPA needing gypsum (calcium sulphate), starting at 0 PPM ensures your salt additions react with mathematical precision.
- Seasonal Consistency: Municipal tap water chemistry shifts throughout the year. Starting with neutral RO water guarantees that a batch brewed in summer tastes identical to one brewed in winter.
- Zero Chemical Contamination: Completely removes chlorine, chloramines, fluoride, heavy metals, and wild micro-organisms before they ever touch your grain or fermenter.
Watch the Reviews and Grab Community Discounts
You can watch both full installation guides, testing demos, and reviews directly on YouTube: