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Enter the siteTHE SD5 STEAMLESS DISTILLER — THE FIRST EVER RO WATER DISTILLER
Steve has spent 28 years in water purification, 30 years drinking distilled water himself, and the last 10 years building something better than anything else on the market today.
Watch first
About Steve and the SD5
Who he is, why he's credible, and why he built the SD5.
Why there's nothing as good or better on the market today
The only RO system that can replace a Steam Distiller.
What is the SD5
The SD5 is a WaterDistiller RO — it uses 5 RO membranes to produce water as good or better than an automatic steam distiller, without boiling a single drop. SD stands for Steamless Distiller. The 5 stands for the 5 membranes that make it possible.
A dedicated 2-gallon pure water flush tank backwashes all 5 membranes with purified water every time the unit cycles off — eliminating the TDS Creep and bacteria problems that plague standard under-sink RO systems. The result: consistently 1–3 ppm, day after day, with no tank dumping required.
Who is the SD5 for
The SD5 serves three very different needs. Choose the one that fits.
Pure great-tasting water for drinking, cooking, and your family's long-term health. Pure enough for CPAP machines.
Learn more →Consistently under 3 ppm — meeting or exceeding autoclave manufacturer water quality requirements for dental, medical, and veterinary offices.
Learn more →Type II/III grade water with an optional 2-stage DI upgrade for analytical and research applications requiring the highest purity.
Learn more →Meet The Water Guy
"I couldn't find a water purifier I liked well enough to replace my distiller — so I spent 10 years building something MUCH better!"
My name is Steve. I'm not a water salesman. I'm a Licensed Professional Engineer and Licensed General Contractor with over 28 years helping people make better decisions about their drinking water — not because it was my primary business, but because I couldn't find anyone giving honest answers. Health expert Dr. Andrew Weil mentioned me by name on DrWeil.com when his readers asked about the best drinking water. I still get calls from his audience today.
All replacement filters and membranes are standard, inexpensive, and widely available online. Buy from Steve or find them yourself.
Install it yourself with free phone support from Steve — or have your plumber do it. Steve is happy to walk your plumber through it too.
Enough for high-volume homes, busy practices, and demanding lab environments.
Steve takes every call personally. No sales team, no scripts — just 28 years of answers.