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140 million liters of water down the drain

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EEVblog:

--- Quote from: BrianHG on August 22, 2020, 04:25:19 am ---Nice filter.  I wonder what would happen if you placed a few in series.  Would the water pressure even make it through?

--- End quote ---

Pretty sure it's wouldn't work. It takes ages to refill the tank if you drain it, and we have pretty high water pressure.


--- Quote ---With the price of the unit compared to the local price of distilled water, I would break even in 2 years.  However, without knowing the price of new filter cartridges or how long they would last with my tap water, I cannot tell if it would be a winning or loosing proposition.
--- End quote ---

We get someone in to replace them every year. IIRC it's about $100 a year for that.

tooki:
A tale of two waters, which exemplifies the differences in the differences needed in water treatment depending on climate and raw water source:

Water 1: 21 years ago, I was living just outside of Washington DC (in Silver Spring, MD, the original home of Pace Worldwide) and I decided to make a pitcher of Kool-Aid. So I mixed it up, took a sip, and dumped it all down the drain — the chlorine taste was unbearable. It literally tasted as though it'd been made with pool water. (I had forgotten that the chlorine would have dissipated had I left it uncovered overnight.) DC is basically built on former swamp land, so in the summer, I guess the raw water is not of optimal quality.

Water 2: Here in Zurich, about 70% of the city water is pumped from the lake, while the remainder is a half spring water piped in from a nearby mountain range and half well water from within the city. Since Switzerland is at the top of Europe, altitude-wise, the water here is largely "virgin", needing relatively little treatment. (Amusingly, they use pools of live fish as "canaries" for early detection of water quality issues.) And I must say, the water here is excellent — it tastes great, and even in the summer it comes out of the tap fairly cold. But Zurich actually has a backup water system, too, in case the main system becomes inoperable because of power failure or contamination of the lake! Remember the mountain spring water pipeline I mentioned before? It's purely gravity-fed and requires no filtration beyond a sand filter, ensuring a backup supply even without power. A separate network of 150km of pipes sends this water directly to critical consumers like hospitals, but also to over 400 fountains throughout the city, about 85 of which are special emergency fountains with hidden internal hydrants, guaranteeing 15 liters per person per day. During normal operation, they operate as normal water fountains that literally spout spring water for free. (If you're ever in ZH and see a drinking fountain that looks like a bronze R2D2, those are the emergency fountains.)

BrianHG:
A third party reviewer on multiple water filters and their quality:


Jeff eelcr:
Do not tell them what fish do in it.
Jeff

Wallace Gasiewicz:
I remember this from years ago, so I might not be entirely correct:
Water from many cities.was taste tested by people. the water that consistently year to year that was voted the best was from Detroit and from New Orleans.
Detroit water comes mostly from Lake Huron, In a big pipe from hundred miles away.
Water from New Orleans is mostly "recycled" in that has been through numerous cities and their sanitation plants before it gets to New Orleans via the Mississippi.  I think they also reprocess their sewage, but I am not sure about this.

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