What is Bell Trap ?
Definition of Bell Trap in Construction A bell trap is a trap that is used in a floor or roof drain in commercial structures. The use of a bell trap is not allowed in residential use and a P trap is normally installed in a residence. The reason for the identification of this type of trap as a bell, is its appearance, simply looks like a bell installed under the actual drain itself. These type of traps require recharging and are often dry therefore not performing its intended use. This is the reason that no bell traps are allowed in residential construction, due to the limited use by the homeowner.