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Ph meter issue hinders plants

Ckbrew

Ckbrew

Well-known member
Anyone use a ph meter like this?

https://www.amazon.com/gp/product/B01M5IASHD/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

Just wondering how often it should be calibrated. It was calibrated 7 days ago and used 3 times for mixing nutrient solution. When reviewing my logs for nutrient solutions, I noticed that my required ph down volume was slowly increasing over 7 days, with no change in other added quantities of nutrients. Checked calibration and it was off by almost one unit (giving a reading of 6.01, after calibration 5.2). Now I am nursing them back to health. Besides correcting the ph anything else that can be done for the plants?
 
I used to like pH meters. I had a very nice one that I spent $80 on. I calibrated it very carefully and took awesome care of it. Thing still gave me readings all over the place. I’m afraid what a much cheaper one like what you linked to would do. I recommend just using the General Hydroponics pH test kit with the green liquid and the color chart.
 
Are they easy to read/compare? I have 10-parameter urine test strips for my pug with a rare disease, they don't seem very consistent. I did use them in a pinch when my cheapo pH meter quit working early.
 
I started with an elcheapo PH meter, when it let me down I dropped a bit over $300 for a bluelabs combo plus. And the fluids needed to keep it in good shape.
 
Wow PH pens? I tried them and hated them so I just used the GH ph drops. Then I realized I can be growing without the drops or pen and never looked back. Seriously it’s a waste of money. Even if you buy the best out there it can break then what? Humans always trying to reinvent the wheel lol.
 
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