Aquaponic Gardening

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Comment by Rich Milliron on October 18, 2010 at 9:55am
Hi Amy, here's Travis' info on this intro barrel system:
http://www.aces.edu/dept/fisheries/education/documents/barrel-ponic...
With the pump in the fish tank, the water is pumped into the top of the tall barrel. Here's his description of how this part of the system works (I initially made it his way, using a beer can, rather then water bottle. It was a lot of fun to make and watch, but I found that part of the system not suitable for the long haul. I replaced it with a simple "U" shaped autosiphon at the inside bottom of the tank): "Building the Floodvalve -
This unit is the very heart of the water management aspect of the system. It
makes the flood and drain aspect of an aquaponics system totally adjustable
without the use of float switches, timers, microprocessors etc....
The theory behind its function is simple. A small adjustable self starting
siphon fills a counterweight that pulls open a standard toilet flush valve. Water
from the flood tank begins to flood the growbeds. The counterweight has a small
drain hole in it that allows it to drain at a slower rate than it is being filled. Once
the flood tank has emptied sufficiently to break the small siphon the
counterweight begins to empty. Once the weight is light enough the toilet valve
closes and the cycle starts over again. Think of it as an invisible man flushing
the toilet every so often depending on the flow rate of the pump and valve
assembly you are using. It's really simple in concept and just plain fun to watch.
This is the most complicated part of the system to build so please read this
section entirely until you are familiar with it".
Comment by Amy D Crawford on October 16, 2010 at 6:04am
Rich, I'm enjoying going through your pictures! Can you explain the tall barrel on the right various functions. Looks quite interesting! Love the woodworking. Your produce looks stunning (from the other pictures). Amy

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