A combined inspection gully trap and gully dish apparatus is provided. The apparatus has a gully trap housed within a gully dish. The apparatus is arranged such that when in use liquid can flow into a gully dish inlet and into the trap which is arranged such that it partitions the dish into a liquid inlet section and a liquid outlet section, and wherein the liquid in the trap creates a seal between the two sections.

The present invention discloses a filtration device for use in municipal and industrial sewer systems. In one embodiment, the instant invention comprises a device that filters runoff, preventing unwanted chemicals and debris from entering the sewer system. The device comprises a sewer seal that forms a liquid seal to trap hydrocarbons, such as oil, and prevent odors from leaking from the sewer system, while still allowing water to flow through the system. The trap is removable, allowing for easy cleaning, replacement, and maintenance.

The present invention discloses a filtration device for use in municipal and industrial sewer systems. In one embodiment, the instant invention comprises a device that filters runoff, preventing unwanted chemicals and debris from entering the sewer system. The device comprises a sewer seal that forms a liquid seal to trap hydrocarbons, such as oil, and prevent odors from leaking from the sewer system, while still allowing water to flow through the system. The trap is removable, allowing for easy cleaning, replacement, and maintenance.