Don’t know where exactly to put this question…
I aerated 15 litres of water and measured ph. It was 8.3.
I added citric acid to bring it down to 6.3pH. Then I added ingredients to make worm casting tea, let it run for 24 hours and measured pH again. It went up to 8.1 or so.
Before I use this tea I have to LOWER the ph down to max 6.5, right?
How did it come up to 8.1 from 6.3?..
Measured with a digital ph meter and verified.