Hello everyone I'm looking to lower my temps a few degrees. Lights on runs 82-84* Fahrenheit (28-29* Celsius). My intake is in the same room in the basement that the exhaust exits to. The exhaust makes the room about 4* warmer. If I were to cut a hole in the wall and pull fresh air from another room would that lower the temps by 4* ? I say 4* Fahrenheit because that's the temperature difference, taken at floor level, approximately 12" (30cm) away on the other side of the wall. Here's my setup: 2x2x5.5' tent(60x60x165cm), ambient temps 74*(23*), Phresh filter->4"Vortex->duct->6"cooltube(250w hps)->duct out of tent. 6" and 4" fans inside for circulation. So my question is: Will that drop the temps a little bit? One more thing .. it's the runoff(soil) that's most important when checking pH right? So if last time, my pH was 6.15 coming out and about 6.7 going in then I would need to raise my pH going in to get it within acceptable range coming out? My runoff from soil should be 6.3-6.8? i know that's the proper range for soil, I just wanted to be sure it's the runoff that I should be most concerned with. Thank you all!