There is a growing movement in the US to get off the water grid.

Jan 03, 2018, 10:00 PM

At Rainbow Grocery, a cooperative in this city’s Mission District, one brand of water is so popular that it’s often out of stock. But one recent evening, there was a glittering rack of it: glass orbs containing 2.5 gallons of what is billed as “raw water” — unfiltered, untreated, unsterilized spring water, $36.99 each and $14.99 per refill, bottled and marketed by a small company called Live Water. “It has a vaguely mild sweetness, a nice smooth mouth feel, nothing that overwhelms the flavor profile,” said Kevin Freeman, a shift manager at the store. “Bottled water’s controversial. We’ve curtailed our water selection. But this is totally outside that whole realm.” Here on the West Coast and in other pockets around the country, many people are looking to get off the water grid. Start-ups like Live Water in Oregon and Tourmaline Spring in Maine have emerged in the last few years to deliver untreated water on demand. An Arizona company, Zero Mass Water, which installs systems allowing people to collect water directly from the atmosphere around their homes, began taking orders in November from across the United States. It has raised $24 million in venture capital. And Liquid Eden, a water store that opened in San Diego three years ago, offers a variety of options, including fluoride-free, chlorine-free and a “mineral electrolyte alkaline” drinking water that goes for $2.50 a gallon. Trisha Kuhlmey, the owner, said the shop sells about 900 gallons of water a day, and sales have doubled every year as the “water consciousness movement” grows. What adherents share is a wariness of tap water, particularly the fluoride added to it and the lead pipes that some of it passes through. They contend that the wrong kind of filtration removes beneficial minerals. Even traditional bottled spring water is treated with ultraviolet light or ozone gas and passed through filters to remove algae. That, they say, kills healthful bacteria — “probiotics” in raw-water parlance. The quest for pure water is hardly new; people have been drinking from natural springs and collecting rainwater from time immemorial. The crusade against adding fluoride to public water began in the 1950s among Americans who saw danger in the protective measures that had been adopted over decades to protect the populace from disease and contamination. But the off-grid water movement has become more than the fringe phenomenon it once was, with sophisticated marketing, cultural cachet, millions of dollars in funding and influential supporters from Silicon Valley. One recent morning in the hills of Berkeley, Calif., Cody Friesen, the founder and chief executive of Zero Mass Water, was inspecting water collection panels he had installed for his investor Skip Battle, a longtime tech leader who now sits on the boards of LinkedIn, Netflix and OpenTable. The system — called Source, which retails for $4,500, including installation — draws moisture from the air (the way rice does in a saltshaker) and filters it, producing about 10 liters of water a day and storing about 60 liters. The goal, Mr. Friesen said, is to make water “that’s ultra high quality and secure, totally disconnected from all infrastructure.” “Just take a breath of air,” said Mr. Friesen, a professor of materials science at Arizona State University. “Take a deep breath. No matter how wealthy or poor you are, you can take a breath and own that air that you breathe. And yet water — the government brings it to you.” Mr. Battle’s system runs on power from its own small solar panel. It feeds into a tap set up in his stone garden, where he goes to drink. He said he’s been making all his meals and drinks with it. Mr. Battle poured himself a glass. “The water from the tap just doesn’t taste quite as refreshing,” he said. “Now is that because I saw it come off the roof, and anything from the roof feels special? Maybe.” The most prominent proponent of raw water is Doug Evans, a Silicon Valley entrepreneur. After his juicing company...