Estimating and Costing

Pick up the incorrect statement regarding a master trap from the following:

  • A. It is provided in between the lower end of the house drain and the street sewer
  • B. It is provided a cleaning eye at the top of the trap
  • C. The mica flap valve which opens inwards only, is fitted at the top of the inlet pipe
  • D. The water seal is less than that of ordinary traps
Answer: Option D.

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