Pier for 1100GTO #Guiding

Donald Brannan

I have an 1100GTO mount on order and plan to house it in an observatory on permanent pier with imaging in mind.   I own an old AP 8" diameter portable pier.  Would anchoring this in concrete and filling the tube with sand be sufficiently stable or is there clear benefit in purchasing a heavier thicker permanent pier for best performance.  Any thoughts?

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