So after a few grows…
Think I have the water reservoir dialed in…
Sharing as a start for designing your own setup
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Great pictorial explanation 
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Once you put lights to your system that heater will be unnecessary. Likely need a chiller.
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More info for reason for heater…
Reservoir located in unheated area of pole barn in central NY… For ease of drain/clean/refill…
Need a aux heater in the winter…
Plus winter well water is 45F …
Need to raise it to 65-70F so not to shock girls roots… :>
No need for heater in the summer …
5’ x 10’ x 8’ high grow room insulated with 6" of rigid foam…
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..4 Girls… 30 days in flower…12/12 light
Just Showing Aux Red LEDS On For Clarity…
Operating 12/12 @ 1K PPFD & Red Leds - CO2 @750 - 50%RH - Tent 70F
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Great set up you have there
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Great diagram!
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What lighting are you using?
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Im loving the diy setup growmie 
. U Got everything dialed in. 
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Got that dialed in like Flynn 
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Time To "MainLine… Hate “Trimming” the girls… But its for the best…
Before:
After… Topped… All veg below the 3rd node removed…
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Grow Room conditions are via a “TrolMaster” controller.
Keeping nice smooth conditions Day & Night
24 Hour plot…
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OK… Have now trimmed the four girls to produce eight “Cola’s” each…
Will do some light trimming as growth continues…
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If you don’t mind…
What is your flood schedule in vegg and in flower, if there is a difference… ?
Plant’s are lookin happy and healthy…
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Veg:
Water : 2 minutes every 28 minutes…. PH. 6.5-6.9. 65F EC 1.5-2.0 During “Daylight"
Light 18/6
Flower Light 12/12 light
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Does that kind of pruning give you the larger yield with better quality buds?
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So, there are so many ways to successfully grow. For us we prefer to trim to produce 8 nice strong “Colas” per plant. With 4 plants, that results in 32 two foot long “Cola’s” which produces a lot of quality bud. To give you an idea on yields. We end up with more than two - 5 gallon “Buckets” of tight big, dried bud from the 4 girls. Attached a few typical results.
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