Water
Residential water quality, filtration, plumbing, and hot water for healthier, higher-performing homes.
Explore Water
One system, source to fixture
Each topic anchors into the flagship guide. Dedicated deep-dives come later — the guide covers the full system today.
Understanding Your Water
Municipal vs well, and the path from source to tap — where quality actually changes.
The Four-Part System
Source, filtration, distribution, fixtures — every tap in the house is one system.
Problems Worth Solving
Hard water, chlorine, lead, PFAS, iron — what causes each and what fixes it.
Common Mistakes
Buying before testing, pitcher-filter plans, softener-filter confusion, forgotten maintenance.
Where to Start
The priority order: test, know your source, whole-house, drinking water, softening, upkeep.
Directory
Systems & components
The filtration, treatment, and hot-water equipment cataloged so far — entries are added when they earn a place, not to fill a grid.
K5 Drinking Station
Kinetico
Reverse osmosis drinking water system with customizable filtration cartridges
Boroux Foundation
Boroux
Countertop gravity-fed water filter with coconut shell carbon and earth-based filtration media. Removes fluoride, chlorine, heavy metals, and microplastics.
Rorra Water Filter
Rorra
Under-sink filtration system with multi-stage carbon and membrane technology for clean, great-tasting drinking water.
Premier Series Softener
Kinetico
Non-electric twin-tank water softener for continuous soft water supply
Whole House RO
Clearwater
Commercial-grade reverse osmosis for entire home water purification
NPE-2 Tankless
Navien
High-efficiency condensing tankless water heater with WiFi control
Operate it
Water protocols
Practices in the directory that run on the home's water system.
Cold-Water Immersion
What cold plunging does, what it doesn't, and how to run it at home without ignoring the risks.
Contrast Therapy
Alternating sauna heat and cold water in structured rounds — an old practice with genuinely mixed evidence.
In the wild
Documented builds
Homes in the directory with their water systems documented room by room.
Ben Greenfield's Idaho House
A 10,000-square-foot biohacking house on family land. Copper under the floors, ethernet in every room, a $150K red-light chamber downstairs — designed as generational infrastructure, not a wellness flex.
Kayla Barnes-Lenz's Austin Longevity House
A full home 25 minutes outside Austin, designed around measurement and subtraction. Kayla Barnes-Lenz's residence documented room by room — lighting, air, water, sauna, bedroom, and the products that make it work.
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