A trap serves to prevent foul odour and viruses in drainage pipes from entering the premises by means of water seal that is formed when the trap is filled with water.
A trap serves to prevent foul odour and viruses in drainage pipes from entering the premises by means of water seal that is formed when the trap is filled with water.
A trap serves to prevent foul odour and viruses in drainage pipes from entering the premises by means of water seal that is formed when the trap is filled with water.
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