Tom Swift wrote:
Wow can we please see pictures of your bunker. Bunkers are underground hydroponics would be expensive and quite the luxury. If I have the money and time to build a bunker I will right now I'm just gonna have to settle with a cabin on top of a hill at the back of a swamp. I might dig it out and make a bunker under it later. For now my cabin is a go. Bunker in same location in the future.
Pictures of most of the "Hive" are available off my website if you click on the links from "Research and Development." Only about 40% of what I intend to build before 2010. The big planner map is in the "Sparkgap" link.
Tom Swift wrote:
I did a brief amount of research on hydroponics throughout the summer and seems the way to go. Automating the system would take the chore out of it and give you have a couple large bags of sprout seeds you could live for a long time. Of course on the scale your looking at you could grow a wide variety of vegetables.
I bought a dedicated AVR controller off http://www.futurlec.com
along with some of their sensors intending to use this as to run the permaculture lab in all facets as an automated process, including waterpump, lights, nutrient circulator pump, temp/hum monitoring, etc. This is a pretty big cheap embedded device (equivalent to an XT PC in 1989, really) and you can hook up a lot of stuff to it. I'm not boosting Futurlec, mind you, it's just they sell it cheaper than anywhere else on the Internet. I've already bought stuff from them that is working excellently. If you find a cheaper AVR programmable PC please let me know, this one is down to $19.00 now (w/128K ram, uses freeware C compiler, supports 12C serial lines!) Considering I paid $225 for my RABBIT 2000 board in 2003 this is pretty cheap to say the least. Also you can get Ethernet chip for $19.00 now and monitor your setup from anywhere on RJ485 or telephone wire cable.
Tom Swift wrote:
The only concern is from what I understand your wanting to build a underground hydroponics room attached to your bunker room via 1.6m diameter pipe? (How much is the pipe). Anyways but then you want to get direct sunlight on it seems like direct sunlight would waste the underground part and would be secptable to radiation. But I think a Rad system would work in terms of getting the heat down there. Electric heating may work if interested in placing either solar panels or a windmill topside
I bought a big supply of 1.6m pipes of corrugated steel back in 2005 from a scrap metal dealer and basically use this to link up any new addition to the shelter system underground. Every time I add a new component to the shelter complex, I leave at least one connecting join in the form of a tunnel or a hatch which I bury in sand until it is ready to join up with the new part. Kind of an open source shelter complex.
Every single electric heater system I have looked at has been sold for peacetime greenhouses with unlimited electricity. Most of these heaters would drain my battery storage in no time with 6KVa+ draws. You'd be better off heating water with methanol cans rather than require this much juice to keep it warm.
I have done nearly every single system so far with microamps! You should have seen the difference when I replaced my automobile lamps in the shelter for lighting with LED bars! I went from 2 days on battery power to 2 weeks deep cycle on a single battery! Then I have been replacing my big fat auto 12volt fans with larger sized computer fans which provide twice the air volume with 20% the electricity! Pretty amazing difference. When the blast shelter was first completed I turned on lights and fans and then locked it up. By following afternoon batteries were dead. Since then with all the alternatives installed, the batteries are still going strong at 40% after closing the shelter for 9 days! This is with no inputs from solar or wind.
All 12v pumps, wherever possible that the volume can be tiny (and still get the job done) I am using micropumps I got from places like BGMicro on the net. The local hydroponics pump sold here in Australia for $49.99 was sucking 2 amps at 12 volts!!! Not for survivalists, definitely. I'd be out of electricity and dead in the water with no air conditioning or filtration within one day if I used the conventional stuff I got from auto stores initially. That's why a lot of hydroponics advice you get from books is actually targeted at dope dealers who have these huge budgets for electricity and supplies and you have to look at far more modest systems to be able to plan for long term sustainability. Who wants a $1200.00 grow light system intended for marijuana that drains your battery in fifteen minutes during a crisis?
Tom Swift wrote:
I'll have hydroponics in some sorta system no matter what I do. I saw a design for a living room PVC made Hydroponics system in either and old Mother Earth News or Harrowsmith magazine although I do not have the magazine here I will try to replicate the system sometime over the winter/spring.
I have been a little worried lately about PVC getting into my veges, but it is advocated everywhere as cheap trough racks for hydroponics. Anybody that knows more about this please upload info. I was hoping I could get some ceramic coated troughs for long term use, like bathtubs with ceramic coating inside or similar. Be a shame to survive fallout and then get cancer from PVC seepage into food supply.