Tag: plumbing DWV

If you’re a homeowner, contractor, or DIY plumber in Los Angeles County, you’ve likely heard about the new LA County plumbing codes—and how they impact DWV (Drain-Waste-Vent) systems. These updates aren’t just bureaucratic fine print; they affect everything from pipe sizing to vent placement, and ignoring them can lead to failed inspections, costly rework, or…