Plumbing in Norman, OK — What You Should Know
Norman's red Oklahoma clay expands dramatically when wet and shrinks during summer drought, pulling slab foundations and the plumbing embedded within them. The University of Oklahoma campus anchors a rental market full of 1940s–1960s duplexes with original cast-iron stacks, while newer west-side subdivisions off Robinson Street carry polybutylene that insurers now flag during home sales.
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