Hey @Ovie,
Thanks so much for that, you are too kind! Good work with the troubleshooting too. One note I can pass along is I find 5.7 pH a bit low for hydro. Cal/Mag is absorbed best above 6.1, so you may want to tweak that pH up a smidge. Let me know when you are ready to calibrate again and I’ll double check it was a success for you.
Cheers,
Stephen