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I "found" a parking bollard that does the trick nicely. It's 200mm, comes pre-filled with concrete and has a 20mm thick 300mm x 300mm base plate.
What I am going to do is mount this on to the top of my in-ground water tank (300mm thick "slab") by drilling holes for marine grade stainless steel dyna-bolts 40mm into the slab. The holes will be filled with construction grade adhesive to prevent any moisture leaking onto the concrete. I'll then use flexible tile glue (from any hardware store) and a 6mm piece of landscaping rubber matt, followed by more tile glue and finally plonk the pier onto that mass of rubber and glue.
The pier has to be prepared though, got to sand off the rust, treat what is left on the metal (using rust-converter) and prime then paint it gloss black.
I was planning on getting a local company to weld a 300mm x 18mm thick steel plate to the top of the mount, then use some stainless steel threaded rod to attach an 18mm aluminium plate, upon which I need to find and place a "puck" to mount my IEQ45 on.
I'm facing some difficulties getting the measurements for those plates, not to mention the puck. Looking like I may have to find someone to machine those for me.
Does anyone see any major hassles with this?
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