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    400 Watt HPS Digital shutting down randomly

    I have a Digital Greenhouse brand 400w HPS digital ballast with air cooled hood. Its worked great for about a month on 12/12, but now shuts down randomly. The ballast is even cooled, I built a duct around it to flow the exhaust air over it. The top of the hood maintains a pretty steady 90...
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    Frustration with ventilation

    So I have a 3x5x5 grow area with a 400 W HPS with an air cooled hood and a 4x12 charcoal carbon scrubber with a TD 100x that is 135 CFM with out the scrubber. Anyway I had ordered a TD 150 to cool the light seperated from the grow to keep out most of the heat so I can add CO2 and the god...
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    2 liter soda bottle aeroponic system?

    I can't even remeber what the book was called but in it the people made a setup where water was piped in through pvc pipes, and out through sprinkler heads into 2 liter bottles that where upside down, with the bottom cut out and turned inside out for a cup to hold the plant. The idea being that...
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