Hey gang; just soaked and planted - sprouts ~10mm tall now after 36hr. I’ll be the 1st to say it - I’m a newbie and I don’t know what the hell I’m doing! With that said; I’m trying to read and understand other posts on this an similar topics. Here we go… My tap H2O is filtered ‘Zero Water’ and tes…

Spiny_N, Vivosun meter PPM is 0005. The H2O (City tap water) is filtered using a ‘Zero Water’ filter - popular in USA. The TDS meter that comes with Zero Water filter shows 1. With this in mind- how do I lower the H2O pH? I have pH-Up and pH-Down in bottles. Once I have a more pH balanced H2O - …

If the ppms are 0 to 10 you don’t need to adjust it at all. Its already neutral. As I said in the other post many meters cant read very low ppm water to give you a pH. If that’s what you have been using you dont need to flush.

Why doesn't my pH Sensor read pH 7 in distilled or deionized water? -... pH electrodes will NOT give accurate pH values in distilled or deionized water because distilled and deionized water do not have enough ions present for... And water filtered to below 1…

Thanks, but even more confused… How can pH and TDS correlate? My city tap water measures 8.8pH and ~150TDS. The filtered (Zero Water) city tap water measures pH9.8 and <5TDS. I see others in ILGM posts say that (pp) “…my non-nute water is ~6.5pH…” so there must be a reason why to use pH adjusted…

because like the article i posted says, meters cant measure the pH of water with virtually no ppms. Your water of 5 ppm is no doubt a ph of 7. But your meter cant detect it. Its not the way they work. It may measure 9.8 but its not. My meter just bounces all over trying to read Reverse Osmosis wat…

[image] GDP having some problems Grow Journals I use an RO buddy. Water comes out around 1-3ppm. Great product for the money. You don’t need to adjust distilled/RO water. It self adjusts to the current soil pH. You only need to adjust if you add nutes.

Okay that I understand - extremely low ions cause pH sensor/meter to provide false readings. However; the city UNfiltered tap H2O measures at 8.8pH. Are you saying that by filtering the city tap H2O, now with ~5TDS, then the pH should lower to ~7ish?

Yes, exactly, but your meter wont be able to measure it. Just trust that its ok.

What are you growing in. Soil? What brand and variety?

Whew…okay…emergency rise aborted! Thanks Spiney_N. Douglas~

Water pH testing and runoff?

Nutrients

Spiney_norman April 7, 2021, 6:58pm 9

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Water pH testing and runoff?

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