Looks pretty sweet, dont worry about the tent sucking in as long as you have some air coming in through a vent. It just means your pulling a lot of air through the tent which is fantastic. More usable co2 and harder for pests to get a foothold.
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The reason I was asking is bc my tap water runs almost 100 PPM on its own, so I have to factor that when I'm figuring the PPM of the added nutes. When my meter reads 550 PPM it means I'm only giving my plants ~450 PPM of nutes.
Air out should = air in so open the vents at the bottom to balance the draw. If the tent is being sucked in it means the fan is working harder than it needs to in an attempt to create that balance. And you're not gaining anything by running it that high with not enough intake. You should either lower the speed or open the vents.
Something else to consider: as you start heating the house in the winter you will be pulling your house-heated air thru the tent and out the window, so you'll be spending more to heat the house. You could take advantage of the heat in the tent by venting it out of the grow room and into the rest of the house which will lower your heating costs!
Oh my tap water is 120 ppm Average
Indeed. So you should subtract that number from the PPM of your nutes to get a nutes-only PPM number. However, if you're also concerned about total dissolved solids, the total PPM number is something to pay attention to.
730 PPM sounds fine for an auto in flower. I'm working from this guy's chart as auto in soil ppm charts seem to be hard to come by!
med-man method - feeding chart ppm/ec | The AutoFlower Network - AFN
Especially since you have to take out at least 100 PPM for the water.
Looks like a solid mix
730 PPM sounds fine for an auto in flower. I'm working from this guy's chart as auto in soil ppm charts seem to be hard to come by!
med-man method - feeding chart ppm/ec | The AutoFlower Network - AFN
Especially since you have to take out at least 100 PPM for the water.
You'll like the Head Band aka Sour Kush, OG13 i havent tried but supposed to be fire.