I can test for pH. It’s been awhile. Thanks for the info. BTW what your doing with technology and gardening is amazing.
Full time job and wanting to grow a lot of food. Tunnel helps but there's a lot of tattered tunnels and tunnels that have fallen into disuse around here due to the management it requires. Kinda gotta be available all the time. We had a swing of 50 degrees in 14 hours from high to low last week and naturally, that came with high winds. Automation is the only way.
Heading out to get frame 4 of 7 in right now.