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#21
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#22
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Couple things I just wanted to throw out there before I forget. LOL!
The Fence Post cover I bought and used on that NFTsystem was from fleet farm (not sure if there are any out by you) and it was I think 16 bucks for a 8 foot piece...not to bad, and it's thick enough it's light tight also. I wouldn't use it again, but it wasn't to bad cost wide. I did have emitters on the ends of those small 1/4 hoses that go through the top, they both sprayed the younger plants as mentioned, and feed the NFT. There is a Name for this type of NFT system but I can't remember it. I have been working on setting up a large scale lettuce NFT system with 200 placements, for this I used vinyl Rain Gutter Down Spouts and cut 2" holes in it for 2" net cups. It's a bit deeper then I'd like,and of course, once I got done drilling all the hose, I found shallower stock available. They were under 3 dollars for a 10' length. Also, I wanted to add about the air diffusers in the reservoir... 1) it helps to pull gases to the top as in an aquarium, 2) while doing so it creates surface movement in the reservoir helping to get are into the fluid, again as in nature and aquariums, surface to air exposure is very important. 3) it bring fresh air into your reservoir and which if you have a more eclosed system, is a pretty good idea. Something I remember also, and is also why I asked about them being started plants or bought. When I first set up that NFT I used store bought soil plants, rinsed them near to death to get as much soil off as I could. I had to completely flush my system out after that, I don't remember how long it took, but it really messed things up. So completely flushed out my system with bleach and water, fresh nutrients, and put the plants back in..and didn't have anymore problems after that. I don't remember if my roots got that bad, I do remember yanking nasty handfuls off and rinsing the remaining roots realy good before putting them back in. I did not have the plants in the system while bleaching..just want to make that clear. ;-) Hope any or all of that helps. |
#23
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I do know someone who builds timers. He is currently in the process of getting them in production for selling to the public. They range from a simple cycle timers to fully customizable timers, including hundreds of on off times per day. Even a photo cell so it can tell when it gets light and can go into day mode. Also a backup battery in case of power outages, that's also important because you don't need to re program it when power returns. I plan to advertise his timers on my hydroponic website to help him out. If you are interested I can E-mail him and see if he is ready sell any yet. Last I knew, he was developing a new circuit board that he can use for all models of them to keep costs down. That way he didn't need to have multiple boards made, just a larger quantity of one board. If you are interested send me a private message with an e-mail, so I can send you the info. Quote:
P.S. There is a difference between Coco fiber and Coco chips. Coco fiber has the texture of potting soil and will wash through the holes in the baskets. Coco chips have a texture like small wood chips for your smoker. Some will poke through the holes but 99.99% will stay in the baskets. Last edited by GpsFrontier; 11-27-2009 at 07:28 PM. |
#24
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#25
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I never had that problem again no matter what system, when I started my own seedlings, even in peatpods, which I would not remove when transferring into the hydro systems. |
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