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Old 21-04-2019, 07:57 PM
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leon
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Join Date: Apr 2006
Location: Warrnambool
Posts: 12,810
Absolutely deep, the deeper the better.
Mine was in very solid soil and it was 900 deep and 600mm x 600mm
And the pier was incorporated in it as a steel cylinder 300mm in diameter filled with cement as the whole lot was poured in one go.
Once set a Mack truck couldn't pull it out.

The things is this it is what you can afford and the skills you have.

Mine was probably over kill, but that is what i do, and it was watered in the summer months at the base due to soil drying out and shrinkage

Leon
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