Thread: Observatory Piers - whats your experience
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Old 08-05-2006, 11:10 PM
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astroron (Ron)
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Join Date: Mar 2005
Location: Cambroon Queensland Australia
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Hi Houghy my pier is a 90mm pipe filled with sand 1mt above the ground and 1mt into the ground and a 50cm concrete caseing, andis isolated from the surrounding floor by a 12mm thick rubber spacer
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