NJ Master Plumber case studies
NJ Master Plumber · Put your knowledge to work in context.
The New Jersey Master Plumber credential is the license that lets a qualified individual supervise plumbing work and, depending on how the business is structured, hold the master-level responsibility behind a plumbing contracting business in New Jersey. It is aimed at experienced journey-level plumbers and plumbing contractors who already know installation practice and now need to demonstrate command of code, system design, and the regulatory side of the trade. The NJ Master Plumber case studies are 5 cases and about 3,429 words.
1Sealing a Permit for a Job You Do Not Control
You are a New Jersey master plumber employed by an established plumbing contractor. A general contractor on a 12-fixture restaurant alteration in Trenton asks you to “pull the permit and sign off” even though the contractor’s business license expired 45 days ago and the drawings were prepared by an unlicensed draftsman.
688 words, about 3 min2Eighteen Inches of Fall on a 180-Foot Building Drain
A five-story, 60-year-old apartment building has a 4-inch cast-iron building drain that runs 180 feet from the base of the soil stack to the public sewer. The basement ceiling provides only 18 inches of fall.
705 words, about 4 min3Fertilizer Injection, Boiler Chemicals, and a Buried Double Check
A 6-unit mixed-use building has a 2-inch copper water service at 80 psi static pressure. The owner is adding a 1 1/2-inch lawn irrigation system with a fertilizer injection pump, a coffee roaster with a carbonator, and a boiler make-up line treated with corrosion chemicals.
645 words, about 3 min4Grease Interceptor Odors and Bypassed Kitchen Waste
A 150-seat restaurant has a 1,000-gallon exterior concrete grease interceptor 60 feet from the building. The 3-compartment sink (18 by 18 by 12 inches per compartment), a 40-gallon-per-hour dishwasher, a mop sink, and a pre-rinse sink discharge to the interceptor through a 4-inch line.
709 words, about 4 min5Adding a Tankless Heater to an Old Common Vent and Gas Manifold
A three-family dwelling is being converted to a four-family. The existing 1/2-psi natural gas system has a 1 1/4-inch service and a manifold with four 1/2-inch black-iron branches: one 40-foot run to a 75,000-Btu/h range, one 25-foot run to a 35,000-Btu/h dryer, one 30-foot run to a 40,000-Btu/h water heater, and one 50-foot run to a 100,000-Btu/h boiler.
682 words, about 3 min