re: Setting a 4x4 fence post in concrete on top of 2" schedule 40 pvc pipe

quote:

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Do you have room to reroute the pipes? It’ll be more work, but it may solve your problem.

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Technically, yes. But I'd have to pump pool water down 3' or so to drop level below those pipes so I can cut into them. There's also 5 that I'd have to reroute. I'm not worried about having to get to the pipes later if needed. I'm fine just digging up the post. My concern is how much dirt do I need to have between pipes and bottom of concrete. I don't want to break the pipes. Thanks