Installing underground rough in plumbing under the cement slab before pouring the floor on the pole barn house. How to install sewer septic and drain lines before pouring concrete slab floor. This is how I did my pvc plumbing under the slab floor. It required a lot of digging and I hit a lot of rocks but I got it done. I decided to dig mine after drilling the holes because I figured I might run over the pipes if I did the plumbing first. You can do whichever order you like. Doing it this way made so I had to watch carefully where my holes were at all times.
Well good luck with your projects. Let me know if you have any questions.
https://amzn.to/2txjDFe here you can find the CST Berger laser transit. If you need a good transit. Awesome setup and very accurate!
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I hope this video helped you. Thanks for watching.
Music credit: Morning Mandolin by Chris Haugen. Thanks Chris I really like the tune.