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I've got a oilless diaphram pump it's a 2 head, 2 cfm, 200mbar (approx 80% absolute vacuum I) Will this allow me to successfully purge BHO. My other option was a pump that went to 50mbar which is approx 97% absolute vacuum. For bho what's better a 200mbar pump or a 50mbar pump? Do I need...

So I'm curious Does 3.4 btu per 1 watt apply to all forms of lighting? I mean is a watt a watt no matter how u look at? Or is HID hest different than LED heat How much heat would a 480 watt QB give off? Does the diodes themselves put off heat or is it the 480 watt meanwell driver giving off...

Like the topic says 1 watt = 3.4 btu I have 8x8 tent 315 watt CMH 600 watt mh\hps 480 watt quantum board 630 watt cob\blurple 6885 BTU total 3 oscilating fans 2x6" inline fans for exhaust Passive intake I grow in my basement Ambient temp in summer outside of tent is max 24c or 75f but Its...

Ughhhh so when I moved them from my small tent into big tent they were 24" under cree cob LEDS And looked like this. I was giving them 1 litre of water every 3 days each Moved em into the big tent and every 3rd day I was giving them 2 litres of water to try and soak the whole medium. Then they...

These are the first plants I've grown. My homeboy got 15 years growing dope. He suggested GREAT WHITE MYCO. Said it's all he ever used. I'm sure it works. But I've always hated middle men. And how they price hike. After much research I found out Theres only 2-3 plants that actually manufacture...

So the room I'm growing in is roughly 14x10x8 I've got an 8x8x6.6 tent and a 3.5x3.5x6.6 tent in there at the moment. One veg, One grow My rafters are accessible. It's not drywalled. Its got these metal frames with little decorative insulation on there. I can easily take these out. As of...

Stepwell hotsoil..literally has everything. Just add RO or filtered water they say. Plants always had a bit of nute burn since started them in the hotsoil. They grew out of it. Fimed 3 early and too young but they bouncing back. The 1 was stunted so let him grow straight to catch up...

96"x96x78" 8x8x6.6" No carbon filter (3x cob bars with fans (240 watts at the wall each (1x 600 watt hps open ended (1x 6 cobs\blurple with 6 fans (630 watts at the wall 2100 watts at the wall of lights roughly. Not as hot as all hps but room but the fans from these cobs do put off alot of...

So this is first grow.. Probly shouldnt of potted them in organic hotsoil right from the get go. The but of yellow probly from nutrient burn. Now I didnt condition my soil with water before germinating seeds to help the soil drain like they recommend. I forgot. So I wasn't sure they were...

My goal..huge yeilds, resin, dense buds Strain check. Tent check. Environment check..organic hotsoil check. Ro water check Just need a light -My requirements 4x4 -Obviously high cri 80 would be fine 90 would be better -Uv or ir if possible but may not be which is fine - 3-4000k in colour...

So I know some about cob chips to get me by but not so much about each one specifically. Basically here's my dilemma. -Cob Led light that costs 300 -4x cree cobs ( cxa2530) -extra blurple 10 watt chips driven at 5 watts -Draws 450 watts from the wall -90degree lenses -Cob Led light that...