Johnston House is on East Lake Rd. at jct. SR 96A, 1.5 mi. s. of jct. US 20/SR 5. Seneca County farmer and native Scotsman John Johnston was responsible for introducing tile drainage in the 1830s, an important innovation in the development of American agriculture. An ancient technique that consists of laying curved tiles or pipes just beneath the soil's surface, it allows farmers to drain excess water off their land and thus increase crop yields.
The facility includes the Mike Weaver Drain Tile Museum, which displays a rotating selection of its more than 500 different styles of drain tile dating from 500 B.C. to more recent plastic versions.