http://gardenpool.org/I made one of these when I was living in Tennessee. Nice way to cut down on food costs. From the blog:
"The Garden Pool combines:
- Solar Power – Harnessing and storing the sun’s energy.
- Water Conservation – Using less water and recycling waste water.
- Poultry farming – Raising chickens.
- Aquaculture – Raising Tilapia fish.
- Hydroponic Gardening – Growing fruits, veggies and herbs without soil.
- Organic Horticulture – Using natural methods to control garden pests.
- Aquaponics – The symbiotic cultivation of produce and fish in a recirculating hydroponic environment.
- Biofiltration – Natural water filtration method using biochemistry and duckweed.
- Thermal mass - Thousands of gallons of water that is warmed by the sun and being surrounded by earth and concrete provides “inertia” against temperature fluctuations.
- Permaculture - GP systems mimic relationships found in natural ecologies."
Hopefully a glance around the link interests some people into making their own version.