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New Sand Testing Rig

Build the simplified iAVs Percolation Rate Tester iAVs-suitable sand should be three things.  It should be inert.  It should be free of silt and clay.  It must drain effectively. We measure the sand’s ability to drain by measuring how quickly water travels...

Sizing an iAVs.

When it comes to sizing an iAVs, the first thing you have to know is how much fruit and vegetables you are going to need.  The next thing to know is the quantity of fruit and vegetables you can grow in a given space. Working out how much food you need is a simple...