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allangee t1_jeb0a6k wrote

Depending on your soil conditions, you can possibly notch the end of 4" pipe and twist/drill it through under the walk, sucking sand/gravel out with a shop vac.

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Kalarix OP t1_jeb1xnv wrote

I can hope they put a decent base down under it, but other areas I've hit clay pretty early unfortunately

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