MS Plumbing Practice Questions - Mississippi Plumbing Contractor Examination Exam

Per IPC 2021 Section 312.3, which statement about drainage and vent air testing is correct?

Plastic piping shall not be tested using air Plastic piping may be air-tested at 5 psi for 15 minutes An air test of 50 psi is required on all DWV systems Air testing is never permitted on any drainage piping

Correct Answer:

Plastic piping shall not be tested using air

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