CA C-36 Plumbing case studies
CA C-36 Plumbing · Put your knowledge to work in context.
A C-36 Plumbing Contractor license is the California credential that allows a business to contract for plumbing work - potable water supply, drainage, waste and vent piping, fixtures, water heaters, and related fuel gas piping - as a licensed contractor. It is issued by the Contractors State License Board and is written for people who already have hands-on, journey-level plumbing experience and now want to qualify or run a plumbing business. The CA C-36 Plumbing case studies are 5 cases and about 3,449 words.
1Garage ADU Bathroom Vent Tied Below the Flood-Level Rim
A 1968 two-story duplex is being converted into a main house plus an attached ADU. The garage slab will hold a new bathroom group-water closet, lavatory, and 36-inch shower-about 9 feet from an existing 3-inch cast-iron soil stack.
722 words, about 4 min2Hillside PRV, Thermal Expansion, and Irrigation Pressure Drop
A 4,200-square-foot hillside house has 145 psi at the street. The 1-inch copper service enters through a pressure-reducing valve at the meter set to 62 psi, then runs 80 feet to a 3/4-inch main.
728 words, about 4 min3Backdrafting Commercial Water Heater in a Depressurized Closet
A 199,000 Btu/h commercial gas water heater in a 3-foot by 4-foot closet with an 8-foot ceiling serves a 60-seat restaurant. The heater has a draft hood and a 4-inch single-wall flue with 6 feet of horizontal run, two 90-degree elbows, and 12 feet of vertical rise.
683 words, about 3 min42-psi Gas Service With Pool Heater and Outdoor Kitchen Added
A 2-psi natural gas service enters a 3,000-square-foot house through a 1-inch polyethylene yard line and a line regulator at the foundation that reduces pressure to 7 inches water column. The existing 3/4-inch black-iron manifold serves a 120,000 Btu/h furnace, a 40,000 Btu/h range, and a 50,000 Btu/h water heater.
659 words, about 3 min5Unshored 6½-Foot Sewer Trench After Rain
A crew is replacing a 6-inch clay sewer lateral for a single-family house. The new 4-inch ABS line crosses under a concrete driveway and connects to the city main 7 feet deep at the property line.
657 words, about 3 min