Nutrient/ water usage
I am back to this again.
I have about 30 gal in a partially buried 55 gallon drum.
The other day I brought the ppm to 830 and corrected the ph to 6.3
3 days later it was about 10 gal low. I refilled without checking ph or ppm, but after I checked it and the ph was 8 the ppm was 530
I corrected the ph to 6.3 then rechecked the ppm now it shows 380 ppm,
I checked and rechecked it several times thinking I may have goofed the first time. So I bring the ppm up to 580 but stop there because often if I let it run for a while the ppm comes up. I assume it takes a bit to fully dissolve.
Why would my ph and ppm swing so wildly.
I do have about 100 lettuce plants a week from being done then another 130 seedlings.
No doubt those mature plants are taking up both nutrients and water, but why the swing in ph and ppm when adjusting ph. I am using phosphoric acid as a ph reducer.