In general, prices for exterior drain tile retrofits run from $20 to $60 per linear foot, while interiors range from $60 to $100 per linear foot. That includes the price of pipe, gravel and any ...

And you don’t see the stream of pollution flowing through subsurface drainage tiles — agriculture’s unregulated sewers. JANET KAUFFMAN has restored wetlands on her farm in Michigan.

Drain tile systems have been in farm fields for much of the last century, but finding older tile lines for maintenance or repair can be hard, depending on soil type, terrain, and other factors.

Winkler drain tile manufacturer AccuPipe is back with its previous owners after a six-year stint under U.S. management. Precision Land Solutions (PLS) announced Friday it has bought the AccuPipe ...