Yep! DEFINITELY what he said!
@jzs147 here's the photo's I promised you earlier.
This girl has seen me through 3 summers & 3 winters on top of a mountain (high winds, torrential summer storms & snow-falls in winter) & is definitely destined for the knackers yard at the end of this season (if it lasts that long....), but has done me well in that time for all of about $180:
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The frame is completely fucked (hence the added horizontal poly-tube bracing that has punctured the cover) & I've had to cut-down a lot of the lower uprights & reinforce them with dowel inserts just to keep it standing.
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I initially held the external "excess" down with bricks, but that didn't work at all, so I used some 90x40 timber anchored down with tent-pegs
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Here's the lower frame tubes held-down with heavy-duty tent pegs:
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See what I meant by NOT having the sharp ends of the pegs in contact with the outer skin?
Again, I had to brace the horizontal frame pieces with poly-tube just to keep it up & running.
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OK, so I've been a bit of a cheapskate & had to do quite a bit of DIY on it, but it's done bloody well considering the environment it's had to endure.
I've got a replacement that I'll configure differently (lower excess cover folded UNDER the bottom frame tubes & internally).
I also bought some heavy-duty pond liners to create the floor & put down some river sand down as a base before I erect it.