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Ph?

Satyaban

Satyaban

Banned
I bought a Ph meter for liquids, the only name on it is "pH" and if I turn it upside down it reads 'Hd". I also received a TDS&EC meter that came together. My problem is as follows. My tap water is reading 7.9, which I believe is high. I will include a couple of pics and I don't believe they are suffering. I don't trust this meter without corroboration. I use a Nikon coolpix so I don't think I can do much more with detail.

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Based on your pics, the dark green leaf color, and overall health I'd venture to say that you're in the golden zone as far as PH goes.
 
Thanks. That means a lot to a first time serious grower. I will test some run off the next time I have some.
 
What kind of meters? The cheap ebay ones are junk. I just sent three TDS meters back for a refund.

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Got a Apera TDS 20. The old meters would show my well eater at 440 ppm but the Apera show it at 730 ppm. You can calibrate the Apera too easily.
 
As is said above use some 7.0 calibration liquid. You will be able to tell if your meter is accurate if not switch to calibration mode and set at 7.
 
That is the one that came with the Ph meter. Is that a Ph meter as well, I have hardly looked at it and worked with the other.
 
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3Berries said:
What kind of meters? The cheap ebay ones are junk. I just sent three TDS meters back for a refund.

s-l500.jpg


Got a Apera TDS 20. The old meters would show my well eater at 440 ppm but the Apera show it at 730 ppm. You can calibrate the Apera too easily.
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Seriously, what is that gizmo for? My guess is it would be good for hydroponics. I put the hot soil on the bottom so I don't have to feed them any more. I bought the Ph meter and this came with it on Amazon, junk is junk no mater where it is bought or how much it cost.
 
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I looked at that and I think I read some reviews, that and the notation that it is not for water caused me to decide not to buy it. If the accuracy is confirmed there isn't anything easier than dipping this in water or liquid. I thought about going to the fish store for a kit but I remembered what I had to do when I had 3 fish tanks with the biggest being 50 gal.
 
I don't know what you mean by not for water, or maybe I misunderstand you. Yes these papers are designed for measuring pH in an aqueous (water) solution, and while they do not have the accuracy of a properly functioning and calibrated meter, they are accurate enough for growing cannabis. Just dip and read.
 
I invested in Bluelab pH meters for liquid and soil and had no issues with them. I haven't used either in six months because I moved to organic living soil. All I do now is let the water stand about 24 hours with an airstone going in the bucket. Most cities' tap water is weakly buffered mildly basic to avoid lead leaching into drinking water. It doesn't take a lot to drop it below 7.0.
 
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