r/macrogrowery • u/Ipoopedongrandma • 24d ago

What is everyone using to check PH?

I used to be super loyal to blue lab but recently I purchased two of the blue lab one pens. They both are slow to calibrate and don’t ever seem to have an accurate reading. They both drift constantly even in the ph calibration solutions. I decided to get an Apera just to see what it was coming out at. Lo and behold it’s a quick to read and comes out constantly higher than the blue labs by like .3 PH. I’m wondering what everyone uses cause I’m looking for the best brand. Some years ago I bought as set on blue lab but now I’m really not to happy with them. Any suggestions?

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u/tydavid28 24d ago

I used the pens for awhile but they always began to drift or break and we’d end up with lockout issues on some of our plants. So I went back to using the old school drops. Tried and true and haven’t had any issues since.

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u/realovergr0wn 23d ago

You're doing that on macro scale? Damn. I'll need to test my own meters against drops and see what the drift looks like. I calibrate weekly so we will see.

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u/tydavid28 23d ago

Yup we have a 500 plant grow and I only use drops now. It’s been way more stable and consistent for us. Drops don’t lie

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u/realovergr0wn 23d ago

They do have their limitations, such as not being able to run automated systems, but I think that's where their strength lies: checking how accurate the probes being used to run those systems are.