The tube section is 165 x 6mm black pipe so it wasn't necessary to add any extra ballast......I can barely pick it up as it is.
I'm going to make a second one that will be outside of the observatory for the Lunt solar.
I have just received building approval (not easy to get in a cyclone area) so hope to start work on the slab in about 5 weeks.
I will post progress photos once it's completed.
Cheers
Gary
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