Well, i went ahead and poked it
(I use 8 bundles of 3 tab shingles for ballast, they belong in the back shed)
I had to get the lawnmower out to get the shingles in, and decided to take an hour or so to sweep up and play tetris with the stuff in there...I hasn't been this clean in years!
(Dont look at the workbench)
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