Advice Needed Using postcrete for 76mm tube

gap30

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Hi all been a while since I have posted after a bit of advice

I moved house recently in October and have spent the last four months in hell, anyway my newly stripped back to the brick 1950's house is looking swell

I have not watched any tv for four months and had a rather unfortunate incident which killed my appetite for all things satellite related

Now I decided to temporarily set up my 1.5 gibby on a floor mounted pole last week drilled into a levelish flag silly me been pissing in the wind ever since

Good news signals initially all good in the back of the garden just not on an uneven temp setup

Now my question I have some lengths of 76mm tube lying around, I was planning to use a 2.5m length for example and go half way into the ground and set it using postcrete, now looking at Channel Master installation diagrams they show a piece of rebar through the tube I take it this is to stop the tube spinning?

This installation could be classed as semi temporary/permanent maybe just a test run

Will this all end in tears and will I be wasting my time?
 

Analoguesat

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The rebar (or long bolt etc) is to stop it rotating round when the dish is wind loaded. I didnt get a chance to do my 2 scaffold poles when the estate worker knocked them in for me and sure enough the poles move in the strong winds we get up here. Ive had to lash up outrigger poles and wooden braces to stop the dishes moving although Im going to get a long horizontal pole and some clamps to cross strap the poles against each other.
 

gap30

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Do I absolutely need the rebar, I dont have a welder etc

Could I just lash something up rebar wise ie drill through the pole 10mm threaded rod etc
 

Analoguesat

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Yeah should be fine. All you want is something robust to give some friction against the massive twisting force a dish can exert on the pole.
 

gap30

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Also if i plan to go 1.3m down how do I keep my hole tight without buying any 'specialist' tools or am i overthinking it

ps Do i have to use galv tube, I only have steel lying around but can get a 6.5m length of galv for £65
 

Analoguesat

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4 foot is a long way to go down with just a spade - Cant help with that though - my poles were put into a drainage trench backfilled with shingle and there is definitly a little side to side movement with 1m dishes on them prior to the dish arm braces going on. Ive tamped down the shingle as best I can and the result is adequate for what I want
 

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Dig down about 18" or so, add the rebar roughtly a yard up from the end of the pole ( put two in at 90 degrees apart, one about 6" above the other).

Hammer down the whole assembly until the lowest rebar hits the dirt at the bottom of the hole, put the postcrete in and leave to set hard. Then hacksaw off the top 3" of the post which will have been abused.
 
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