IPC 312.10 / ASSE 5110
What it means on the job
Test cocks on backflow preventers must remain accessible for annual field testing by a certified tester. Obstructing or burying test cocks prevents required testing and is a violation of the water purveyor's cross-connection control program.
Tested in 1 CraftIQ puzzle
- whats-wrongUnion Hall Training: Backflow Prevention Assembly
Related IPC sections
IPC 1003.3.4
A sampling tee or port must be installed on the outlet (downstream) side of the interceptor to allow the municipality or authority to test effluent quality. This is required by most jurisdictions and sewer use ordinances.
IPC 1003.3.5
Garbage disposals (food waste disposers) are generally prohibited from discharging through a grease interceptor. The ground food particles overwhelm the interceptor's capacity and require much more frequent cleaning, reducing effectiveness.
IPC 303.2
A pressure reducing valve is directional and must be installed with the flow arrow matching the actual direction of flow. Installed backwards it does not regulate at all, and the zone it was supposed to protect sees full riser pressure. IPC 303.2 requires materials to be installed in accordance with the manufacturer's instructions and the referenced standard, which is the hook here — not IPC 604.8, which is silent on orientation. This is a common and easily missed field error because the valve physically fits either way.
IPC 424.3 / ASSE 1016
All shower and tub/shower combination valves must be pressure-balancing, thermostatic-mixing, or combination type to prevent scalding. This is a life-safety requirement, especially for children and elderly.
IPC 424.5
Hot water must be connected to the left side of the valve (when facing the valve from inside the shower). This is a universal plumbing convention and code requirement to prevent scalding confusion.
IPC 501.1 / IFGC 305.3
Gas-fired water heaters in garages must have their ignition source elevated a minimum of 18 inches above the garage floor to prevent ignition of flammable vapors from gasoline and other fuels.
CraftIQ explanations are original educational commentary written in trade language and verified against the cited standards. Always confirm requirements against the code edition adopted by your jurisdiction — this is training material, not a substitute for the code book or your AHJ.