Riverview is a different plumbing town than Brandon, and the difference is age. Where Brandon's stock spans sixty years, most of Riverview went up in a compressed boom between roughly 2000 and 2020, with Rivercrest, Panther Trace, Summerfield, South Fork and Triple Creek all filling in during that window. That means PVC drains, CPVC or PEX or copper supply, and very few of the cast iron and polybutylene problems that define older towns nearby.
What Riverview does have is volume-built housing reaching the point where original builder-grade components start giving out together. Water heaters installed at closing in 2006 or 2012 are now at or past their expected service life. Original fixture cartridges, angle stops, toilet fill valves and washing machine hoses are aging in step across whole subdivisions. Boyette Springs, dating to the late 1980s, is the notable exception, a full generation older than most of its neighbors.