EC/PH levels

I always wait an hour between adding anything or adjusting anything to let it stabilize before taking any readings.

Just highlights the imprecision of using EC to guesstimate concentration of dissolved solutes (fertilizer and in this case also whatever you use to adjust pH). I'd match the EC you measure after mixing fertilizer and not worry about the effects of your pH balancing on EC as long as it isn't drastic. ---- reasoning as to why... Unless you are causing a precipitate or some reaction that locks up nutrients from plant use, it should not be impacting your dissolved fertilizer. EC from what is dissolved is not 1:1 the same across all solutes, so EC may not react as you expect when adding something beyond the plagron products. The only concern here is that what you use to adjust pH is not somehow reacting with the dissolved fertilizer and producing something that locks up what should be available to the plant. "That" would potentially be very bad... or possibly insignificant, too, lol.. depends on scale, but regardless better to avoid altogether. I'd wager this is a non-issue.. wait and see. no problem arises, no reason to do anything... EC on its own is important. EC to guesstimate ppm (concentration) is incredibly imprecise. Depending on the manufacturer of the probe, it might be one of four different conversion factors used -- whimsically choosen. There could be as much as a 40% difference in ppm conversion from same EC reading and the only cause for the difference is where the probe was made. Not an exact parallel to this context, but is relative to why adding something didn't have the effect you expected on EC. Whereas matching plagron's EC for their specific products and ingredients is precise, because it's a controlled context. The moment you deviate from their products or use them in different porportions, EC may not change in a linear or proportional way.... or when you add ph-balancing products.

Overthinking in growing leads to screw ups ;)))) Keep it f@cking simple ! There shouldn't be any drift. Maybe your pen has two units and you get lost between US/EU 500/700 ? ;)

Hi, Small Drops are absolutely okay. Higher Drops are Not Common. To See Whats Happening please add some Numbers. Enjoy 👊🍀👍

Hi DuSSS,If you’re using Plagron Grow/Bloom as mineral nutrients, a noticeable drop in EC after adjusting the pH can happen. The important thing is how much it drops. The order I would recommend is: 1. Fill the reservoir with water and measure the starting EC. 2. Add the Grow/Bloom according to your desired dosage. 3. Mix well and let it sit for a few minutes. 4. Measure the EC and adjust it if necessary with nutrients or water. 5. Only then adjust the pH. 6. After adjusting the pH, measure the EC again. If the EC drops from, for example, 1.5 to 1.4 after adjusting the pH, I wouldn’t worry too much about it. But if it drops from 1.5 all the way down to 1.0, that seems like quite a significant drop. One important thing: I wouldn’t simply add more nutrients just to bring the EC back to the original level without checking the pH and EC again afterward. pH Down or pH Up can affect the EC because of their contents, and the readings can also change slightly once everything has been thoroughly mixed. So I’d always check both EC and pH again after the final adjustment.

When asking questions like this, it may seem like common sense to understand but including exact numbers and how many points it dropped would be helpful information. I know they only give you a limited amount of space to ask a question .I wish they made it just a little bit longer. Your EC should not be dropping dramatically from adjusting the PH.