Hey Growers!
We are having a sale on our pH Calibration and Conductivity Care Kit. Grab one 20% off today!
Hope everyone is having a lovely day so far 
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Thanks for the tip @GroboJulia!
We recommend calibrating your pH probe at least every grow, but in the test lab, Iām calibrating much, much more often to ensure the readings are accurate. Best practice is to check the cleanliness of your probe tips during your weekly drain/fill and calibrate every month.
Cheers,
Stephen
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