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REPORT COPYRIGHT VIOLATION IN REPLY
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Message Subject
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How I grow food year-round despite harsh winters
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Poster Handle
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Anonymous Coward |
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Post Content
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OP, I showed your link to a friend of mine. He wants to know: 1) how does he contain the water (one of the great advantages of aquaponics is the bacterial cycle which makes it all work and conserves water) 2) what keeps the gravel from compacting when he walks on it? Thank you  1) I use heavy duty 45 mil Firestone epdm pond liners to contain the water in the fish tank and the water/gravel in the grow bed. 2) I lay planks of plywood down that are about 1.5' x 2.5' (same premise as snow shoes, it spreads out the downward force). Regarding the gravel, make sure to use 2" river rock to prevent clogging. If you use pea gravel (which sounds like it would make sense, the thinking being that smaller rocks would filter better), it'll quickly get clogged. You want the poop to be able to settle down to the bottom through the crevices of the bigger 2" river gravel, where the composting worms can then eat it at their leisure.
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