What's your watering system? Does that 30-40 minutes count the time needed to adjust the PH in your water? Do you have one main hose running past each plant with smaller side hoses branching off to each individual plant?
Watering my 22 plants takes about 20 minutes, but getting the water prepared takes a lot longer, mostly because the PH meter takes several minutes to settle down in RO water with nothing in it.
Watering my 22 plants takes about 20 minutes, but getting the water prepared takes a lot longer, mostly because the PH meter takes several minutes to settle down in RO water with nothing in it.