Saltmarsh Sewer is a minor river (brook) and drainage ditch of the Pevensey Levels in Hailsham, Wealden District of East Sussex, England.[1] Comprising multiple ditches, Saltmarsh Sewer drains water from farmland east of the B2104 road, and is a tributary to Glynleigh Sewer.[1] Additional streams also flow into Holm Sewer, Downwash Ditch and Winters Cut.[1] Two pumping stations are located along the course of Saltmarsh Sewer.