Construction Plumbing Stages
New plumbing is typically installed in phases. Underground lines and slab penetrations may be completed before concrete is poured. Rough-in plumbing follows as the framing takes shape, placing pipes, drains, vents, and fixture connections inside the structure.
After walls, cabinets, and finished surfaces are installed, the plumber returns to connect sinks, faucets, toilets, showers, appliances, water heaters, and other equipment. The completed system is then tested for leaks, pressure, drainage, and proper operation.