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NE IL | https://www.drainagesolutionsinc.com/product_list.php?category_id=79
I've never used anything like this on our tile outlets but one of our neighbors has some on some land he owns south of Kankakee and he said they've kept water from backflowing into his tile mains from the creek when the creek is full. He said he's saved a lot of crops from drowning out since he installed them. | |
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Backflowing Tile
