Vermin such as rats, in particular sewer rats, commonly enter buildings including homes via the underground network of pipes that form the sewer system. Rats can squeeze through tiny gaps or openings in drainage pipes or via the toilet for example to enter buildings.
Numerous solutions exist for preventing rats from exploiting pipes to enter a building. One such solution is to install a barrier, which comprises a moveable flap that blocks rats from moving upstream towards the building but allows the waste to flow out from the building. While these barriers may prevent rodent access to some degree, they are not without limitations. These barriers are not suitable for use in inclined pipes because the flap of the barrier hangs open, allowing rats to squeeze beneath the flap, thereby bypassing the barrier. In addition, these barriers are difficult and cumbersome to install, often requiring a variety of tools. The present product seeks to provide a solution to the above-mentioned problems, to provide a device that effectively prevents the movement of rats in inclined pipes and to improve the ease of installation of such devices.