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--Ty-- t1_isw2d2u wrote

1/8 of an inch per foot is a standard minimum grade for patios and stonework, and also happens to be the minimum grade for AC condensate lines (use 3/4" tubing at a minimum)

If you're able to achieve that kind of a drop across however far you need to go, then great.

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scirocco_flowers t1_isw39jy wrote

Awesome, thanks for the info!

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--Ty-- t1_isw3qy7 wrote

Don't be afraid to go steeper if you are able to. 1/4" per foot is what's recommended for stonework and patios and the drainage line, 1/8th is just the minimum.

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