drum trap

drum trap

[′drəm ‚trap]
(engineering)
In plumbing, a trap in the form of a cylinder with a vertical axis that is fitted with a removable cover plate.

drum trap

drum trap
In plumbing, a cylindrical trap, with its axis in a vertical direction, having a cover plate which may be unscrewed for access; commonly used on the drainpipe from a bathtub or under a bathroom floor.