Floor Drain Trap Seals

Floor Drain Trap Seals for Odor and Evaporation Control

Floor drain trap seals are engineered inserts that help maintain a barrier against sewer gas even when water in the trap evaporates. These devices are ideal for infrequently used drains found in mechanical rooms, storage areas, loading docks and other low-traffic locations, where dried-out traps can lead to odors and potential code issues.

Most trap seals use flexible membranes or mechanical check designs that allow water and cleaning fluids to flow into the drain while restricting air and gas movement back into the space. Pair these with compatible drain supplies and parts to retrofit existing floor drains without major demolition or piping changes.

When planning a new installation, combine floor drain trap seals with quality pipe fittings and support brackets to maintain proper pitch and reliable drainage. Many jurisdictions now recognize trap seal protection as part of best practices for indoor air quality and plumbing system performance in commercial facilities.