IAPMO UPC PI study materials
IAPMO UPC PI study resources

IAPMO UPC PI case studies

IAPMO UPC PI · Put your knowledge to work in context.

The IAPMO UPC Professional Inspector (PI) credential is a professional certification for plumbing inspectors and code-enforcement personnel who evaluate installations against the Uniform Plumbing Code. IAPMO describes its workforce arm as offering "code and trade professionals with industry-leading training and certification," and lists "IAPMO Certification and Testing offers professional credentialing services through its certification and license testing programs" among its business units. The IAPMO UPC PI case studies are 5 cases and about 3,363 words.

1

Café Tenant Improvement: Unpermitted Water Heater and Gas Line

A plumbing inspector responds to a 1,200-square-foot retail-to-café tenant improvement. The approved plans cover only a new accessible restroom and a mop sink.

710 words, about 4 min
2

Basement Bathroom Trap Arms and Floor-Drain Odor

A homeowner is finishing a basement bathroom in a single-family dwelling. The existing 4-inch building drain is exposed in the slab.

686 words, about 3 min
3

Mixed-Use Water Service: PRV, Expansion, and Irrigation Backflow

A four-story mixed-use building has a 1-1/2-inch copper water service with a static pressure of 115 psi. A pressure-reducing valve at the basement main is set to 55 psi.

654 words, about 3 min
4

Restaurant Gas Piping: Low-Pressure Test and Appliance Connections

A restaurant tenant build-out has a new 1-inch black-iron gas line from the meter, a 40-foot run to a 150,000 Btu/hr range, and a 3/4-inch branch 20 feet to a 40,000 Btu/hr water heater. The contractor air-tests the entire system at 5 psi for 10 minutes and reports no gauge drop.

667 words, about 3 min
5

Duplex Slab Rough-In: Invalid Tests and Uninspected Underground

A contractor calls for a rough-plumbing inspection on a new duplex before the slab is poured. The underground DWV was installed two weeks earlier but was never inspected; the contractor says it “looked fine” and covered it with gravel.

646 words, about 3 min