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It's only dangerous if the pressure side is accidentally connected to the vacuum chamber. There's not really anything to doing the "conversion." You leave the compressor's high pressure side open and use the inlet as a vacuum source. I flared the end of mine and use a common aircraft (-AN)...

For me, weed was demonized as the gateway drug that turned people into lazy, worthless dropouts and, ultimately, junkies and crackheads. Makes me wonder how many people bypassed pot altogether and went straight from alcohol to meth or crack. Gateway drug my ass.

If you're the ambitious type, a ghetto vacuum pump can be fashioned from a refrigeration compressor. Just be aware that they don't like humidity and they won't last forever running without oil as they would in the original system. I got one from a junk gas station beverage cooler that I use for...

That's no joke. Take the maximum vertical space you have, subtract container height, divide by three, and then go 12/12 when your plants get to that point. As a n00b myself, I let some plants veg a bit long due to unplanned circumstances, and now they're outrunning the overhead. Like whoa. I...

This is my opinion and only an opinion: I think all it's going to do is reduce reflection at all wavelengths except the color of the foil and it would be better to change the color of the lights and continue to use full-spectrum reflective material. EDIT: It's anecdotal, but a lot of people...

Oh kay....

There's nothing to worry about. In fact, you could probably leave them on 18/8 if you wanted, the cycle just wouldn't be aligned with actual day/night hours for 12 days at a time. You could also have phased-in the change over a 12 day period, but IMO, it's too early to cause problems by knocking...

One big gotcha that I did not see mentioned is the discrepancy between rated bulb/tube wattage and actual consumed wattage. A 1000W HPS bulb draws 1000W, but the ballast is not included in that. From the numbers I've seen, they usually add 15-20% at that size, so you're looking at another...

A friend I had in high school coined a term for that. Putting pit stick on over b.o. made an odor called "sweet funk." I hadn't thought of that in ages. :lol: You could find some pure silver wire or something through a jewelry supplier. It might be easier to use than coins for making...

They also have nice people on public forums to describe how the seeds are hidden for them.

Ladybugs eat aphids and very small pests like that. Put simply, a praying mantis will eat or at least try to eat anything that won't eat it, including ladybugs and hummingbirds. You have to gauge what kind of pest is going to be a bigger problem.

Maybe "shame on you" wasn't literal, but a metaphor for the obvious green tape and confiscation letter....

You would probably have to coat the entire outside of the tent with something to lightproof it, then there's addressing the inside for reflection. I built a 24" x 36" x 60" tent out of 3/4" PVC pipe, black trash bags, space blankets, 2" foam board for the roof, some threaded eyelets, 5/16"...

I change the oil in my car every 100 miles. The engine hasn't blown up, so why change? I don't actually do that, but it illustrates how a method that works can be excessive or unnecessary.

+1, the paper towel method makes it easier to identify duds without tying up planting media and equipment. What I don't get is why it's popular to float seeds in water as a first step. I have seen no affect on germination times or rates and no correlation between whether sinkers or floaters end...

Yeah I did. The first were put in a cardboard box and the second were just laid flat in a dresser drawer. Honestly, the only reason I did that in lieu of straight-to-dirt was to prevent pots and soil being tied up to find out which are duds. Fortunately none were. :mrgreen: Now that I think...

I can't help but wonder how many good seeds have been tossed over the years because they didn't do something arbitrary like sink in a glass of water after X amount of hours. I took 17 seeds between four strains and floated them in water overnight. Some sank, some didn't. After putting in Ziploc...

EDIT: Sorry, replied to the wrong thread. :dunce:

Thanks! Those were all cropped, so the original was actually bigger. Lemme see if I can't get some decent plant pics....

That's MG Moisture Control soil? It sure doesn't look like it; there's no perlite or fertlizer beads and way too much chipped wood. (or has it been watered so much that the chips floated to the top?) It looks more like Kellogg's Gromulch. Neither of them are really that good. Anyway, yes your...