Construction starts today, so I thought Id share the final design Im going with.
Because I am constrained to have the structure less than 52" above my patio, Ill be digging a sunken aisle down the middle of the greenhouse, between the growbeds. I had wanted to have a 300 gallon fish tank, but Im willing to settle for a 150 gallon (600 liter) stock tank for the fish with a 100 gallon (400 liter) stock tank for the sump. The smaller tank will allow me to have an aisle through the entire greenhouse, which should be simpler than having the center blocked by the tank. The plan is to raise blue gills and redears, with a catfish or two.
The little green circles are planned vertical towers I will be making out of 4" PVC sewer/drain pipe - you can buy these at Aquaponicsource. Im going to try my hand at making them myself, since I think Ill break even making 6 of them.
The large green oblongs are the 50 gallon rubbermaid stock tanks. The two overlapping the fish tank will just drain into the fish tank. The fish tank will have a drain near the top that will be plumbed to drain into the sump. The vertical towers and the two grow beds overlapping the sump will all drain directly into the sump. So this will be a hybrid CHOP/CHOP-2 design.
Today Ill probably wont get more than the foundation in, but the die is cast...
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