Lally
Member
I looked at a Berkey and decided against it after watching this video. I went with the Zero Water filter pitcher
Here's some info on the TDF meter method of testing water - from this article:
https://www.hydroviv.com/blogs/water-smarts/tds-meters-and-testers
"...a TDS/ppm meter does not give meaningful information about [toxic metals] presence or concentration in water. There are two main reasons for this:
- A TDS/ppm meter is a nonselective measurement and cannot differentiate among different ions. A more sophisticated piece of equipment is needed to perform those types of measurements. The value of 184 that was measured using a TDS meter in a prominent Huffington Post Article was not the lead concentration… it was the water's natural TDS level (which is dominated by minerals like calcium, magnesium, and sodium).
- A TDS tester is not sensitive enough to measure toxic levels of lead, chromium-6, or arsenic, even if they are present in a sample. This is because the reading displayed on an inexpensive TDS meter is in parts per million, while things like lead, chromium-6, and arsenic are toxic at part per billion concentrations (1000 times lower). Using a TDS meter to measure ppb lead concentrations in tap water is like trying to use a car’s odometer to measure a child's height…. It's the wrong tool. For example, the water sample shown on the right hand side of this article's header image has lead levels that are 100x the EPA limit, and the TDS reading teetered between 000 and 001.
I use a Berkey as our local water supply has been contaminated and half of the wells in my city have been shut down. My Berkey sits next to the sink in my home and I would totally recommend it and use one on the road.