A pop up plug or stopper assembly

摘要

A waste assembly (10) comprising a waste body (32), a seal (20) and first (26), second and a third engaging formations. The waste body has a waste outlet opening(s) (33) and is adapted for mounting in a waste outlet of a receptacle. The seal is adapted to move, in use, along an axis between a lowered position substantially sealing the waste outlet opening and a raised position allowing fluid flow through the waste outlet opening. The first engaging formation is fixed relative to the waste body. The second and third engaging formations are fixed relative to the seal and are angularly spaced apart around the axis. The engagement formations are adapted such that lifting and rotating the seal from the lowered position causes the first and second engaging formations to engage and retain the seal in the raised position and rotating and dropping the seal from the raised position causes the first and third engagement formations to engage and retain the seal in the lowered position.