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  1. VPD Fanatics (4 replies)
  2. Anti wilt spray? (10 replies)
  3. digital timer with 24 on/off settings per day? (7 replies)
  4. Friend gave me OZN-1 O3 generator, how is best/safe way to setup? (0 replies)
  5. Co2 Level for a Perpetual Sealed Room??? (8 replies)
  6. Very small exhaust on sealed room for co2 intake? (0 replies)
  7. can i push exhaustred air back into my closet? (3 replies)
  8. quick rubbermaid ebb and flo set up (5 replies)
  9. selfhemployeds 2000k vert grow (1 replies)
  10. CO2 / Alarm Setup (12 replies)
  11. Extra hanger poles (0 replies)
  12. 4X2 OR 3X2 GROW TENT? (0 replies)
  13. Help select wireless video security monitoring system please (3 replies)
  14. Smokin's basement build log (48 replies)
  15. Terraria-hybrid micro critique (2 replies)
  16. Scrubbing ~18cfm, everything seems to big! (0 replies)
  17. how do i seal a crack on my ez cloner? (32 replies)
  18. Oscillating Pump`s (0 replies)
  19. pc box diy leds (0 replies)
  20. looking for a self priming water pump (3 replies)
  21. Haunted Basement ARDUINO Vert Insanity (6 replies)
  22. Checking load on circuit through outlet (2 replies)
  23. measuring spoons for 0.5 milliliter increments? (11 replies)
  24. LMAO (0 replies)
  25. Lets talk pumps (1 replies)
  26. Carbon filters, Do you push through or pull? (28 replies)
  27. Help selecting tent size please (6 replies)
  28. Contactors: ? About Wiring (8 replies)
  29. cheap diy air conditioner (4 replies)
  30. filter question (4 replies)
  31. aluminum heat exchanger? (3 replies)
  32. Carbon Filter Experts anyone? (10 replies)
  33. Placement / spacing of mini split indoor units ? (3 replies)
  34. Relay to turn pumps off? (5 replies)
  35. help with design (1 replies)
  36. Air-Cooling Lights (2 replies)
  37. New growroom (1 replies)
  38. Watering lots of plants equally by hand? (27 replies)
  39. AC with fresh air? (11 replies)
  40. CO2 and Reservoirs (2 replies)
  41. Help me decide whether I should upsize my garden? (11 replies)
  42. Heat Recovery Ventilators (0 replies)
  43. charlieshydro1 ebay (0 replies)
  44. how do i wire this Variac step controller (8 replies)
  45. wilma dripper system 2014 design (13 replies)
  46. Problema con germoglio da poco piantato. (1 replies)
  47. CAN FILTER AND AIR FLOW (30 replies)
  48. STC-1000 Temp Controller thread (5 replies)
  49. 10,000 Watt Grow Room Shopping List HELP (10 replies)
  50. Anyone tried this budget ph/ec meter? (1 replies)
  51. 5th's New Room aka... The Passion Pit (3 replies)
  52. Chillier Question (0 replies)
  53. Diy Help, Co2 Flip Flop Relay (3 replies)
  54. Any HVAC that can help me? (1 replies)
  55. Has anyone shopped from hydroponics.eu? (3 replies)
  56. ventilation advice needed 6x3x6 box seal it up? window? (14 replies)
  57. air pump for vortex (7 replies)
  58. Timers for 1K Digital ballasts (17 replies)
  59. Water dripping from mini split air handler-check the technique. (1 replies)
  60. Ecoplus 1hp commercial water chiller (16 replies)
  61. small growbox (3 replies)
  62. Optimal Plants per Light for This Set-up? (61 replies)
  63. Cheap DIY carbon filter (6 replies)
  64. Does High Humidity - 70%+ - Guarentee Mold Regardless... (6 replies)
  65. How do you size the dehumidifier (8 replies)
  66. Sealed Grow Room and RH% (6 replies)
  67. Bluelab ph pen, box says no ro water? (13 replies)
  68. Help with a 2000Sqft Grow Room Design (12 replies)
  69. New Vert Grow Room Design Help (1 replies)
  70. HOW MANY BTU TO COOL 2000W (10 replies)
  71. Sealed Room: A/C + fan placement (2 replies)
  72. Odor control in a sealed room (11 replies)
  73. blue labs Warranty (0 replies)
  74. Rebuilding an old spot that was used and abused (1 replies)
  75. 18,000 watt sealed flower room build. (242 replies)
  76. Gavita Plasma (21 replies)
  77. relays 2x2 (3 replies)
  78. Vertical Cool tube ?? help (3 replies)
  79. Drip Manifold Design Questions & Thoughts (6 replies)
  80. Water, Pumps, and Algae (4 replies)
  81. BTU enclosed room help (1 replies)
  82. One AC two rooms (6 replies)
  83. POS Hannah meter (12 replies)
  84. freezer chiller (20 replies)
  85. AC btu recommendations for 4k Air cooled hoods (6 replies)
  86. Mysterious odour problem, help needed! (11 replies)
  87. Swamp cooler in veg (3 replies)
  88. Question for HVAC guys (0 replies)
  89. Advice on a plumbing problem (1 replies)
  90. Does anyone have experience with these mini splits? (20 replies)
  91. ayone using Gotham hydroponics co2 generator (2 replies)
  92. stacking 600 and 1000w in a vert setup (12 replies)
  93. Filter for intake and exhaust (2 replies)
  94. Filter for intake and exhaust (20 replies)
  95. Propagation tray that isn't a piece of shit? (7 replies)
  96. 12x12 grow room under construction (5 replies)
  97. Venting sealed lights into crawled space (1 replies)
  98. Question regardind wire size please :) (32 replies)
  99. electrical breaker box questions (16 replies)
  100. Will This Stress Out My Inline Fan? (5 replies)
  101. Float Valve + Pump (4 replies)
  102. Need advice (3 replies)
  103. Thermometer quality (6 replies)
  104. DTW for coco, questions and concerns (25 replies)
  105. A room within a garage (14 replies)
  106. Growroom automation with grotronix (13 replies)
  107. CO2 USERS...Please Reply...Thanks (14 replies)
  108. Lending toward a ceramic filter over an r/o unit (2 replies)
  109. Proper Canopy Temperature Readings? (18 replies)
  110. led tent ventilation setup. (3 replies)
  111. my new growroom (3 replies)
  112. setup with detailed diagram (6 replies)
  113. ventilation question. (3 replies)
  114. Co2 in bloom, when is it time to shut it down? (5 replies)
  115. 12kW veg room, need to dehumidify, what are my options? (4 replies)
  116. 105+ temps - exhaust design issues? (11 replies)
  117. Hi humidity when lights off (7 replies)
  118. CO2 with exhaust? (2 replies)
  119. Preventing growhouse from mold growth (1 replies)
  120. 90% Humidity !!HELP!! (11 replies)
  121. R/O Filter Still Ok? (1 replies)
  122. Walk-in Closet vs Tent (9 replies)
  123. Under Current users - What are some cons to this great system? (2 replies)
  124. Help!!! (2 replies)
  125. How many 1000 watt ballast can one run safely off of a 200 amp breaker box? (2 replies)
  126. How often should one replace their HPS bulbs? (9 replies)
  127. Snype's New Build - Help Appreciated (24 replies)
  128. Bunches of co2 tank questions (17 replies)
  129. Need help selecting a pump for DTW (2 replies)
  130. best magnification for inspecting plants (1 replies)
  131. Gavita Question (10 replies)
  132. New farm! Advanced stages of scheming (5 replies)
  133. grow bags (9 replies)
  134. Looking for a nice Dehumidifier (4 replies)
  135. 4X4X7' Tent - Gavita 750W 120V - Heating/Cooling - Recirculation - C02 - (4 replies)
  136. Experienced AC Help wanted Help me ASAP!!!!!!! (117 replies)
  137. Ballasts in the Attic (4 replies)
  138. Growing in a Large House vs Commercial(Pros/Cons) (7 replies)
  139. Duct Mufflers - Fiberglass vs. Acoustic Foam (1 replies)
  140. Flopping a 4ton AC b/w 2 rooms?? (7 replies)
  141. 4.5lbs possible with 2400 watts? (32 replies)
  142. Stealth Cabinet with 400w HPS (8 replies)
  143. So you dont like taking baths, huh? (48 replies)
  144. Vertical 1m2 tent 1200wtake a peek (0 replies)
  145. Surf's medroom garage build (12 replies)
  146. Will This Insulation Off-Gas??? (3 replies)
  147. DIY no-hum Fan speed controller for about $30 (5 replies)
  148. Need help regardign the size of grow space... (0 replies)
  149. Tempreture and humidity data logging (4 replies)
  150. 4 x 8 tent with 3 600watt lights ? (4 replies)
  151. Thunder Vertigro Air Cooled Reflector 6" - Experiences? - (7 replies)
  152. Looking For a Drip System For My Room (15 replies)
  153. New grow space design suggestions? (6 replies)
  154. Looking for 25000 BTU closed loop AC recommendation (2 replies)
  155. How to best control temps in a 12'x12' with 4-5kw bloom and just one exhaust fan? (1 replies)
  156. Cheapest tent EVER!! (6 replies)
  157. Anyone use window AC in grow tent? Sealed room. (6 replies)
  158. quietest portable ac (11 replies)
  159. Never buy a dehumidifier from IDEAL AIR. (28 replies)
  160. 2' x 3' space. SOG orrrr? (9 replies)
  161. T5 question - veg tent - shelf ? (3 replies)
  162. 12x30 growroom (10 replies)
  163. “Odor and Airflow Questions?” (0 replies)
  164. So what if the cooltube fan fails? FIRE?! (13 replies)
  165. What 8 bulb T5 fits in a 2x4? (7 replies)
  166. room surface & containers size... math...;-) (2 replies)
  167. Main Question: CO2 and then one about lights (3 replies)
  168. water cooling and theory? (6 replies)
  169. cooling a 600w setup (6 replies)
  170. 50A 240v to a 12x12 shed, advice/insight? (1 replies)
  171. Variac fan controller - minimum power? (1 replies)
  172. Painted walls and drywall mud in grow facilty, is it fine or bad? (11 replies)
  173. Ultrasonic Foggers - Experiences - (12 replies)
  174. Using a dehumidifier as a water chiller (25 replies)
  175. mini split placement (5 replies)
  176. Humidifier Equipment - Need +70% - 4X4X7 Tent - (14 replies)
  177. Tent Setup Advice needed. 3x3 600w (7 replies)
  178. Best Tent on the Market (53 replies)
  179. co2 size of generator? (8 replies)
  180. Carbon filter inside tent, fan outside? (15 replies)
  181. Designing new, large setup (1 replies)
  182. C.A.P. Auto-Drain Controller ADC-1 ----pump?- (17 replies)
  183. high grow tent temperatures (27 replies)
  184. Mini-split vs central AC (5 replies)
  185. The "Totally random stuff that serves a growroom purpose" thread (67 replies)
  186. Are carbon filters as good as Hepa filters when it comes to air quality? (4 replies)
  187. Grow Automation and Industrial / Computerized Systems Controls (131 replies)
  188. Are big speed controlled fans louder than small speed controlled fans. (5 replies)
  189. 5 ton central AC debate! whats the deal with Excel? (66 replies)
  190. Help me decide if a light mover is what I need (9 replies)
  191. Central Air Conditioning Experts In Regards To Multiple Zones (19 replies)
  192. post your fan noise test data here (5 replies)
  193. Is their much of a difference in cooling between 8" cooling tubes and 6"? (9 replies)
  194. Temperature control conundrum (even with arduino) (6 replies)
  195. Quantum ballast failure (11 replies)
  196. NEMA 10-30 30amp Wiring (9 replies)
  197. Hard water filter help (10 replies)
  198. Refill Carbon Filter (13 replies)
  199. HVAC Tech wanted… (9 replies)
  200. Recommend a Co2 monitor.... (14 replies)
  201. 12 x 12 Buildout, Perpetual in Coco (10 replies)
  202. screen of green QQQ (0 replies)
  203. Filter air cooled hoods? (4 replies)
  204. 1k cooling problems (35 replies)
  205. Inline Fan Hi Lo Switch? (3 replies)
  206. Exhaust and effects on central a/c? (17 replies)
  207. quick question on inductor fan? (2 replies)
  208. do hps blow up (9 replies)
  209. need water heater timer wiring diagram (2 replies)
  210. Growing Indoors Efficiently (16 replies)
  211. a/c exhaust? (0 replies)
  212. just how long does a carbon filter last... (21 replies)
  213. Air condition more efficient ? (152 replies)
  214. controller (0 replies)
  215. Thermal radiation of lights (0 replies)
  216. What are some websites that have tents (4 replies)
  217. 1000 watt DWC tent, T5 pre-vegetative tent, T5 mother area, cloning station (8 replies)
  218. Starting a grow. My designs (10 replies)
  219. using a shop vac to suck the dust out of air cooled digi ballast? (2 replies)
  220. # of lights on a 400 amp breaker (for the whole grow) (10 replies)
  221. Best Water Filtration Systems? (18 replies)
  222. Gorilla Grow Tent Layouts (12 replies)
  223. DIY Carbon Filter (1 replies)
  224. Critique my plan before I take the plunge (3 replies)
  225. Has anyone tried the Sensordrone? (5 replies)
  226. Intake Air and Co2 (11 replies)
  227. In-line carbon scrubber - looking for experience/reviews (2 replies)
  228. 400W Mh vs 400W HPS - will they cover the same area? (2 replies)
  229. Help!! I think I'm breeding PM in my ventilation system :/ (24 replies)
  230. Precharged Minisplit? (6 replies)
  231. Home built Adjustable Double Scrog Net (3 replies)
  232. Water Pump and Timed Feeds Issue (3 replies)
  233. mini-split trouble (12 replies)
  234. GOTTA GET THIS SPOT "FINISHED" OUT (32 replies)
  235. Grow room question (0 replies)
  236. Small industrial space/warehouse (8 replies)
  237. Secret Jardin 2.5 WARNING !! (18 replies)
  238. Mini split A/C which you can use like a portable, or way to build it? (19 replies)
  239. 8x4 2000w CO2 room build? (7 replies)
  240. Professional Growers, Please Provide Insight. (12 replies)
  241. Odor Control in Large Greenhouses (4 replies)
  242. Best Way to Seal Off An Open Closet From Main Room? (12 replies)
  243. Sealed Room Build (42 replies)
  244. 1st timer. Advice on closet set up (4 replies)
  245. licensed contractor/engineer available this (0 replies)
  246. £2.50 Venturi aerator for your hydroponics systems. (2 replies)
  247. Greenhouse vs indoor growing (0 replies)
  248. AC return size question (0 replies)
  249. f4 tape (2 replies)
  250. ppm/ec meter (9 replies)