Phases of PLUMBING in New Construction
Design and Planning
This phase involves working with architects and engineers to create a plumbing system design that meets building codes and the specific needs of the structure. It includes determining the placement of fixtures, pipes, and drainage systems.
Permitting and Approvals
Before any work begins, the plumbing design must be submitted for approval to the relevant local authorities, and permits must be obtained to ensure compliance with building codes and regulations.
Excavation and Foundation Work
If the building is on a slab foundation, trenches are dug within the foundation area to accommodate water supply and sewage lines. For buildings with basements or crawl spaces, this work may occur later in the construction process.
Rough-In Plumbing
During this phase, the primary plumbing lines are installed. This includes water supply lines, drainage lines, and vent pipes. Plumbing fixtures, such as toilets, sinks, and bathtubs, are not installed at this stage, but rough-in connections are made for future installation.
Pressure Testing
The water supply lines are pressure-tested to ensure there are no leaks. This step is crucial to identify any issues before walls and ceilings are closed up.
Inspections
Local building inspectors typically visit the construction site to inspect the plumbing work at various stages, including the rough-in phase, to ensure compliance with codes and standards.
Fixture Installation
After passing inspections, plumbing fixtures such as toilets, sinks, faucets, showers, and bathtubs are installed. This phase also includes connecting appliances like dishwashers and washing machines.
Final Plumbing Inspection
A final inspection is conducted to verify that all plumbing work is completed correctly and in compliance with regulations.
Testing and Balancing
The plumbing system is tested to ensure that all fixtures work properly and that water pressure is balanced throughout the building.
Clean-Up and Restoration
Any areas affected by plumbing work, such as walls and ceilings, are repaired and restored to their original condition.
Water Heater Installation
If the building has a dedicated water heater (tank or tankless), it is installed during this phase.
Backflow Prevention Installation
If required by local codes, backflow prevention devices are installed to protect the public water supply from contamination.
Final Connections
This phase involves working with architects and engineers to create a plumbing system design that meets building codes and the specific needs of the structure. It includes determining the placement of fixtures, pipes, and drainage systems.
Final Testing
Before any work begins, the plumbing design must be submitted for approval to the relevant local authorities, and permits must be obtained to ensure compliance with building codes and regulations.
Documentation and As-Built Drawings
If the building is on a slab foundation, trenches are dug within the foundation area to accommodate water supply and sewage lines. For buildings with basements or crawl spaces, this work may occur later in the construction process.
Final Approval and Certification
The water supply lines are pressure-tested to ensure there are no leaks. This step is crucial to identify any issues before walls and ceilings are closed up.