Cool. Thanks for checking that out. Sounds like it's comparable to ashes, but presumably more of a slow release. Around here the nettle patches, which are quite prized for spring eating and aren't all that common, mainly grow in spots in the bush where there were former settlements with fire pits/burn piles. The nettles seem to only grow here where it's highly alkaline. Also sometimes old seashell middens but that's more rare. A lot of those burn piles are more than 100 years old and the nettles are still going strong which makes me think that the biochar/ashes &whatever lasts a long time. Very unscientific- just an observation.
Fwiw, I think that, because the RO water is zero ppm- or should be anyway- the ph is essentially an empty value. I use rainwater, so that's similar. One drop of a ph+ or ph- substance would sway large amounts of it easily- so it's ph shouldn't have any real effect on the test results.
Fwiw, I think that, because the RO water is zero ppm- or should be anyway- the ph is essentially an empty value. I use rainwater, so that's similar. One drop of a ph+ or ph- substance would sway large amounts of it easily- so it's ph shouldn't have any real effect on the test results.