First Grow - Chemon Tree

Got the chiller fixed so I did a res change Friday evening and I must have ruined the probe of my Apera pen with Advanced PH down but didn’t realize it until after waking up to readings all over the place from -0 to 0.5 (that’s when I should have checked my calibration) so in a panic I was trying to empty some of the res into a 32 gal so I could dilute it with water to raise the PH but the plastic shelf broke and a full 32 gal bin of nutes spilled out onto the floor. That $100 pond liner I put down on the floor and a few inches up the wall has paid for itself many times over already. I got it up with a shopvac and realized when I was adding water that it was not raising the PH, and when I read my 7.5 tap water coming out at ~0 I knew I had messed up. By that time I had already pumped the entire 100+ gallons into 32 gal bins. I went down to the grow store and bought a nice Hanna combo meter which I am glad I did, you can tell right from the start that it is a high quality instrument. I was using an Apera PH pen and a cheap amazon pen for EC and the Apera was ok (not quite as accurate as the Hanna but good enough, even though the probe was ruined in 2 weeks of use I will take the blame for that.) but the amazon pen was off by -200, completely unreliable. Anyways I threw some air stones in the nute bins to try and keep them fresh and I’m pumping them out to my outdoor vegetable garden daily as needed. It was all fresh nutes but I didn’t want to pump it back into the system. I had already topped off with fresh water so I chose to just dose up the nutrients from there and start fresh again.