I Bought & Tested the Best-Selling Home Water Distillers. Here's Why ClarityStill is #1:
Written by Sarah Jennings
The morning I found gritty white sediment in my daughter's water glass, after three straight days of stomach complaints, I knew something had to change. I spent the better part of a month researching, starting with a standard pitcher filter and then a two-stage under-sink kit a neighbor recommended.
Neither addressed the heavy metals our municipal report flagged, and the filter cartridges added up faster than I expected in monthly costs. I also borrowed a budget countertop distiller from a friend for two weeks. It worked, technically, but the plastic collection jug left a faint chemical smell in the water, and it barely kept up with my family of four's daily needs.
That's when I decided a proper side-by-side test was the only way to cut through the marketing noise. I ordered five of the top-rated home water distillers on the market, ran each for six weeks under identical conditions, and tracked everything from output speed to real contaminant removal using an at-home TDS meter and a certified lab test.
Here's what I found.
My Test Results
I ran all five distillers side by side in my kitchen for six weeks, using the same tap water source pulled from our municipal supply, which our local report flagged for elevated chlorine byproducts and trace lead. Each unit processed identical daily volumes, and I logged startup time, output per cycle, and noise levels using a decibel meter at three-foot distance every single day.
For purification efficiency I tested incoming and outgoing water with a TDS meter and sent samples from the top two performers to a certified lab for full contaminant analysis. Build quality was judged by disassembling each unit's water-contact components, and safety was tested by monitoring internal temperatures during extended six-hour continuous runs to see which units handled real overnight use without issue.
The biggest surprise was how much variance existed in actual purification, despite every brand claiming near-total contaminant removal. Our top pick's post-distillation TDS reading came in at 2 parts per million, compared to readings as high as 14 ppm from the weakest performer. That gap matters if you're specifically trying to eliminate lead or heavy metals from an older home's plumbing.
Production speed also separated the pack more than I expected. The fastest unit completed a full cycle in just over four hours, while the slowest took nearly six for the same volume — a meaningful difference if your family relies on the water daily for cooking and drinking. Noise levels stayed within a reasonably quiet range across all five units, topping out around 58 decibels.
The main limitation across the board was counter space. Every distiller in this test needs a dedicated 30.5-40.6 cm (12-16 inch) footprint with clearance for ventilation, so none of these are grab-and-go travel appliances. That's a minor inconvenience compared to the purification benefits, but worth planning around before you buy.
The Results:
After six weeks of daily testing, it's clear why our top pick pulled ahead of every other distiller on this list: ClarityStill delivers lab-verified purity without the trade-offs.
Value
Since switching to my top pick, I've completely stopped buying bottled water for the house, and I no longer budget for replacement filter cartridges every few months. That's real time saved not hauling water jugs from the store, and one less recurring expense to track monthly.
The alternative, doing nothing, means staying stuck buying bottled water indefinitely or relying on pitcher filters that barely touch heavy metals. Every month without proper purification is another month of unknown contaminants sitting in your family's drinking glasses, and another set of cheap filters heading to a landfill.
Build quality held up through six weeks of daily use without a single hiccup, and the stainless steel and glass construction shows no signs of wear I'd expect from lesser materials. Backed by a solid warranty and the kind of durability that suggests years of reliable service, this is a purchase that pays for itself in peace of mind alone.
Living With Pure Water Every Day
Mornings look different now. I fill the coffee maker, my daughter's water bottle, and the dog's bowl all from the same carafe without a second thought about what's in it. That small shift in routine has removed a whole category of daily worry from our house.
It's not just for drinking, either. We use it for baby formula when watching my niece, for topping off the humidifier in winter, and for my partner's CPAP machine, which used to build up mineral scale with our old jug-store distilled water.
Customer Reviews
After my daughter's stomach issues turned out to be linked to sediment in our old pipes, this distiller gave me total peace of mind. Six weeks in and the water tastes completely neutral.
I tested our tap water with a TDS meter before and after — 287 ppm dropped to 3 ppm. That's the kind of proof I needed before trusting a new appliance in my kitchen, and it hasn't let me down since.
I've used it daily for my CPAP machine for two months now with zero mineral buildup in the tubing, something my old distilled water jugs from the store never fully solved. Worth every penny for the convenience alone, and my wife likes it for coffee too.
Frequently Asked Questions
Yes. Distillation boils water into steam and condenses it back into liquid, leaving heavy metals like lead and mercury behind since they don't evaporate at the same temperature.
In our lab testing, the top-performing units brought contaminant readings down to just a few parts per million.
Most countertop models we tested produced between 3 and 6 gallons per day, depending on cycle speed and tank size. A family of four typically needs 3 to 4 gallons daily for drinking and cooking combined, so check hourly output before buying if you have a larger household.
No. The vast majority of your daily mineral intake comes from food, not water, so drinking distilled water doesn't create a nutritional gap. Many nutritionists actually prefer it specifically because it removes contaminants without meaningfully affecting your mineral balance.
Expect somewhere between 45 and 65 decibels, roughly the sound of a quiet conversation or a running refrigerator.
If you plan to run a unit overnight, placing it in the kitchen rather than near a bedroom is an easy way to avoid any disruption.
Plan on a thorough cleaning cycle every 5 to 10 uses to prevent mineral scale from building up inside the chamber. Skipping this step is the single most common reason distillers lose efficiency over time.
Yes, distilled water is actually the preferred choice for both. It contains no minerals that could build up scale in a CPAP humidifier chamber, and its purity makes it a safe option many pediatricians recommend for formula preparation.
Distillation physically separates water from contaminants by boiling and condensing, removing nearly everything including dissolved solids and microorganisms.
Reverse osmosis pushes water through a membrane instead, which is effective but typically wastes more water per gallon produced and requires periodic filter replacements.
Demand has consistently outpaced restocks throughout the year, which is why I recommend ordering as soon as you see it in stock rather than waiting. Once an order goes through, shipping has generally been quick, typically arriving within about a week in our experience.
Purchase and Delivery Process
Ordering is refreshingly simple since it's sold directly online, cutting out retail markups entirely.
I'll be honest though, availability has been genuinely unpredictable. When I first tried to order a unit for this test, I waited nearly two weeks before a restock finally went through.
Demand has only grown since, so if you see it in stock while reading this, I'd recommend ordering right away rather than waiting and hoping it's still there tomorrow.
Once your order is placed, shipping has been fast and reliable in my experience.
Where Can I Buy the ClarityStill?
Getting your own ClarityStill with a 50% discount is simple. Just follow these steps: