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    Can you convert a car radiator into an A/C unit? Room Cooling

    I have been wondering if it is possible to convert a car radiator into air conditioner since the principle looks the same and it is a lot cheaper. A car radiator cost about 200 dollars while an A/C unit cost about 1300. If anyone have experience with this please share thanks!
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    Poll: Aeroponics performance over soil, and digital ballast vs normal ballast

    Ok basically there's 2 sides of the story. Some will say that aeroponics will yield about twice as much soil (at least 30% more) but others say that the peformance is similar. Also with digital ballasts many claim that it will have 30% more output but others say its similar performance...
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    Poll: Aeroponics performance over soil, and digital ballast vs normal ballast

    Ok basically there's 2 sides of the story. Some will say that aeroponics will yield about twice as much soil (at least 30% more) but others say that the peformance is similar. Also with digital ballasts many claim that it will have 30% more output but others say its similar performance...
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    help! plants are drooping after room mate took care

    I had a bunch of plants blueberry and some other strains..all nice and healthy until i left town for a week and asked my room mate to take care and they're now drooping but the stems are hard but bent. (pictures attached) I'm thinking either he put the light too low for a day or 2 right after...
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    Correlation between water hardness and bud density?

    Anyone noticed anything significant? Please share your opinions with me
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    Do you use reverse osmosis?

    and if you do what did you seem to get out of it?
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    Can I get everyone's opinions please

    Ok, so I hear that by doing the same grow routines routines, yields can be different from city to city. I'm basically getting half the yield for flowers size that looks the same so I'm trying to figure out why. I've compared the differences and talked to a few people so I narrowed down to these...
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    Got only half of what I expected :(

    I was expecting at least 1.5 pound/1000w HPS but only came out close to 0.85 pound :S The buds looked very nice big and juicy before drying but after it's dried there was no weight. At first I thought the scale was wrong or the difference between hydroponics and soil but I talked to some others...
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    Calgary water (starting at 260ppm)...effects??

    Hey anyone here from Calgary or live at a place where the water starts at 260ppm? I dont know what's really in the 260 ppm but anyone know how that could affect the plants?
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    Plant wilting after 3 weeks of flower and no cure??

    This plant wilted today all of sudden and its been flowering for 3 weeks in a passive half soil hydroponics system. The same problem also occured for few other plants that were in vegetative state and so far I did not find any cure for it. The only reason I can think of right now is overwatering...
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    Any ways to dehumidify the room naturally using outside cold air?

    Has anyone ever tried to take out moisture from your grow room without using an actual dehumidifier? I find that the dehumidifier from the store takes too much power and there must be a way to replicate the same mechanism using natural cold air outside and maybe have a bucket somewhere to...
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    Security question: electricity usage pattern?

    For the ones who have 1000w HPS setups and more, how do you guys avoid the hydro company finding patterns in your electrical consumptions? I know the amount isnt really that significant, but what i'm more worried is that them seeing a pattern like for 18 hours the hydro goes up then down each...
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    how to rejuvinate clones to get better yields?

    on the grow faq section it mentions that seeds would produce more yields than clones because over time clones will lose hybrid vigor thus resulting in lower yields. it is also mentioned that growers should "rejuvinate" their strain. what does this mean and how do i do that?
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    18 vs 24 hour light cycle for veggie stage

    whats the difference? and the pros and cons to each one?
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    help! one of my plants stopped growing

    when i got my batch of clones there was one that was doing better than everyone else, but just a few days ago it stopped growing. i noticed this because another plant that was orginally 2/3 of its size caught up and outgrew this one. all of these plants are kept in the same places and they're...
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    help: wilting plants and purple stems

    one of my plants is wilting and the top leaf stems are turning purple. this is the only plant that turned out like this while the others seem to be doing fine. anyone know whats going on? and is this plant savable? thanks a lot!
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    Plants 3 weeks after cloning

    3 weeks after the cloning took place it seems like they barely grew (each plant grew about 2 small leaves on average per plant) and now they're drooping instead of standing tall and proud. I've been keeping them under florescent light only and no HID...is this bad? and what should I be...
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    Plants are growing but roots arent?

    First I received the plants as clones then I kept them in an ice box and with florescent lights and regulated the temperature and humidity... Now the plants are growing well but today when I checked the largest plant (about 6 inch+) there roots barely grew...In a video I saw fresh clones about...
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    How many plants is too many for a house in Canada?

    What is the maximum plants (approximately) that you can have that can be used for "medical reasons" or "personal use" in case the cops do stop at your door? Also anyone know the legal stuff around this area? what other excuse can you use and how do they usually charge you?
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    HPS with dimmer - recommended?

    I'm wondering it there will be any damages to the HPS bulb or the balace if I add a dimmer to it. Basically I won't be using the 1000w light to its full potential maybe use 250w of it or something. Is this bad?
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