General Plumbing Requirements

Fixtures Must Connect to Approved Water and Drainage Systems

Can a sink or toilet drain somewhere other than the sewer or septic system?

P2601.2

Pipes Through Concrete and Masonry Need Sleeves or Protection

Do plumbing pipes need sleeves through concrete slabs or foundation walls?

P2603.4

Pipes Through Structure Must Respect Framing Limits

Can I drill joists or studs for plumbing pipes?

P2603.2

Piping Must Be Protected From Corrosion, Stress, and Strain

Can plumbing pipes touch metal framing, concrete, or other materials?

P2603.3

Piping Must Be Protected From Nails and Screws

Do I need nail plates where plumbing goes through studs?

P2603.2.1

Plumbing Penetrations Through Roofs and Walls Must Be Sealed

How should plumbing pipes through roofs or exterior walls be sealed?

P2606.1

Plumbing Piping Must Be Protected From Freezing

Can I run water pipes in an exterior wall or unheated crawl space?

P2603.5

Plumbing Piping Must Be Supported at Code Intervals

How often do plumbing pipes need support straps?

P2605.1

Prohibited Fittings Cannot Be Used Just Because They Fit

Are S-traps, flexible drains, or sanitary tees on their back allowed?

P2608.1

Underground Plumbing Needs Proper Trenching and Backfill

Can I backfill around plumbing pipe with rocks or construction debris?

P2604.1