Computer · Plumbing and Sanitation
A specific device or component must be fitted in plumbing systems to prevent the water seal of a water closet (WC) trap from being siphoned out during use. This is accomplished by using a(n):
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Grease Trap
- 2Air Admittance Valve (AAV) or Vent Pipe✓
- 3Flushing Cistern
- 4Floor Drain Interceptor
Correct answer
Air Admittance Valve (AAV) or Vent Pipe
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