My homes foundation was backfield with sand for water drainage.The 2 ground rods are buried in this sand.Does this sand provide a good ground versus buried in gravel? I think both rods are completely in the sand.
Sand is better conductor than gravel when wet. Sand and gravel by itself (dry, that is) are excellent insulators, not good for ground. If you go to a major electrical substation you often see gravel all around, especially around the fence lines. Its a good insulation and could prevent you form electrocuted.
I never thought of this before but the gravel/insulation idea sounds like it could very well be true. If they wanted minimum upkeep the entire area would be on one single concrete slab, but they don't do that. Inside the fenced area's you will find many different concrete slabs with gravel in between them.
Check out the photos on this site.
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Every one that shows the base has separate concrete slabs and gravel in between. You can zoom in for some nice closeups. I learned something new today. Thanks Frank!
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