Jabsco Y Valve. Check local and Federal regulations to determine where direct overboard discharge of untreated waste is permitted. No overboard discharge of untreated waste is allowed within three miles of shore. Some near shore areas and inland areas are designated as "No-Discharge Zones" where the discharge of any onboard waste even treated waste is strictly prohibited. Many of these areas require a waste retention system that can be positively secured in an onboard retention mode. The Jabsco Y- Valve accommodates this requirement by providing the ability to add a padlock that secures the selector handle in either direction to ensure waste is directed to an onboard holding tank. The Y-Valve may also be used to direct waste from a holding tank to an onboard waste discharge pump for holding tank evacuation or alternatively to a waste deck plate for removal by a shoreside pump-out facility. The Y- Valve may also be used in a bilge pumping system to select between two separate bilge pickups in different bilge compartments providing for evacuation of two separate bilge areas with only one bilge pump. Specifications for Jabsco Y-Valve: Manufacturer: Jabsco Color: Black Features of Jabsco Y-Valve Chemical and corrosion resistant polypropylene and stainless steel constructionSelector lever can be padlocked (lock not included) and/or sealed in either positionPorts can be rotated so discharge plumbing can be routed away in parallel at 900 or in opposite directions or either up or down without disassemblyValve is supplied with both 1-1/2" (38 mm) ports (fitted) and extra 1" (25 mm) straight inlet portOptional shaft extension allows valve to be mounted through a bulkhead up to 1-3/4" thick with only the selector handle exposedSelf cleaning design provides trouble free operationMolded in flow direction indicator arrowsEasy access to three sturdy mounting feet for quick and simple installationEasy access to valve by removal of just three hex head machine screws top cover and diverter assembly lift away from the body Package Contents: Jabsco Y-Valve Jabsco 45490-1000: Y Valve