Liquid MareLube™ is designed for valves where access is difficult or convenience is desired. Simply pour Liquid MareLube into the system through the valve tailpipe or hose, and activate the handle of the valve. This is a true Readily Biodegradable and biorenewable liquid lubricant developed for the regular maintenance of marine valves and seacocks. This valve service should be performed several times a season to reduce marine growth and keep seals lubricated.