HumboldtDreams

@BigDaddyK, Lol... That's almost as personal as asking what size bra a woman wears! Indirect answer... Quite a bit. :) Conservative average 3-5# per full season plant and I pack the greenhouse with them. I also will be running autos May-July and refilling with clones in October. So I pull 3 times and not a single tarp! I stay busy!

@OldCoolSativa, And no additional heating required. We are only a few miles as the crow flies from the ocean up in the hills above fog. Beautiful temperate climate usually. We don't hard freeze in winter. :) In November when 3rd run of clones is still finishing we get chilly at night. It turns the purple strains DARK purple.

@OldCoolSativa, I kept the grow at 1999 sq' cause 2000 sq' triggers California State Water Board which is another permit, more fees and inspections. The state is also setting up for commercial cultivation permits in 2018. It looks like their "family farm" tier will be 2500 sq' or less.1999sq' is also all I can handle by myself and still enjoy my life. Anything bigger and I have to rely on regular help and that is a pain and gets expensive. I think the water PH fluctuates as the pressure of the ground water changes seasonally. When there is more water early in the spring more fine clay and sand particles end up in the water.