For purposes of troubleshooting in case of stoppage of flow, what must be installed in the pipe system?
A. Vent pipe
B. Cleanout
C. Drain
D. Tee fitting
Answer:B
For purposes of troubleshooting in case of stoppage of flow, what must be installed in the pipe system?
A. Vent pipe B. Cleanout C. Drain D. Tee fitting