"I'm in The Bahamas, so heat and excess sun is a big issue here. I have a DWC system. I can grow basil and mint year-round without any problems, they don't mind the heat. I also grow lettuce year-round but whereas I can grow any variety I…"
I looked to see if a topic existed on this already, but could not find one through the search function. I am interested to know what uses people have come up with for their used rockwool. Any rockwool that is in decent enough shape I will usually…See More
Hi,I've created an auto siphon that does not stop siphoning water at a grow bed flow rate of higher than 62 GPH. Is it possible that the pipe under the grow bed is too long? The pipe has since been cut to the point marked in the picture in red -…See More
"@Timothy: I'll try giving you a shout on Wednesday, since I am busy running errands and taking take of crap I couldn't get done while working.
@Matt: video kind of dark, but hopefully, you have something left after the storm. The north…"
"has anyone considered using geothermal floor heating and cooling. the reason that I ask is that in winter it heats the floor and in summer it cools the floor. it is a lot cheaper than natural gas and more environmentally friendly then using…"
Hi Jeremiah, not sure what you mean by a moving bed media filter? I am not shying away from any option, just want to keep it as simple as possible. From what I've heard the media grow bed serves as a biofilter quite well..
Actually, once you have them set up nicely.. tack them in so that they cannot move and I have found them to be no problem whatsoever, and easy to adjust if you need to. Just cover the tube so as not to let light in (to stop algae)…"
My thinking is an angular aggregate (like crushed limestone) set to a minimum pack-able depth might work very well. While a smooth floor surface might possibly allow a more free flow of liquids on their way to the drain, the benefit of…"
"I don't have any special thoughts on them, other than that they store a lot of heat. I wrote up the theory behind it here. You might find some out there with a google search.
I'm working on a PCM product that freezes at about…"
"I like the white gravel idea. I've been kicking around in my head ways of covering a dark surface in the summer to avoid heat absorption. That seems like the best one yet!
You could use paint with some texture in it.…"
"Jeremiah, I like the idea of dyed black concrete. I would hate sand and the resultant mess when there was moisture on the floor. I would probably be way more willing to put down an inch or so of some crushed white colored stone in the summer months.…"
"That makes sense. The best surface for absorbing heat is something with high mass, such as concrete. A bit of insulation with black-tinted concrete poured on top of it would absorb a lot of heat. In summer you'd need some way…"