Term

Trap

A trap is a curved section of pipe beneath the sink that holds a small amount of water. This water seal stops drain smells rising into the room. It needs space within the cabinet, and a deep bowl or a second bowl leaves less room beneath, so check that the trap and pipework will fit before you buy. Fitting should be done by a competent installer who follows the sink maker's instructions and the water rules for your area. See also: Waste, Double bowl, Base unit.

A bright farmhouse kitchen with a white butler sink set into a wooden worktop, a brass bridge tap and a window above.

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