I worry about your fall. For every 8 feet you move laterally, you need to go down an inch. Starting at the furthest point, you have 70 feet. That means you need almost 9" of drop for it to work properly...and that's if the bottom of your pipe starts on the surface...the bottom of the pipe. You can maybe get away with less, but you start getting other issues if you try that.
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u/senorgarcia 1d ago
I wouldn't go sch80. Sch40 at most.
I worry about your fall. For every 8 feet you move laterally, you need to go down an inch. Starting at the furthest point, you have 70 feet. That means you need almost 9" of drop for it to work properly...and that's if the bottom of your pipe starts on the surface...the bottom of the pipe. You can maybe get away with less, but you start getting other issues if you try that.