Give Your Boat's Seacocks Some Exercise Open and close your vessel's seacocks regularly. Besides an annual disassembly and lubrication, constant use will keep them in shape and will alert you to problems before they become catastrophic. Avoid that sinking feeling when water comes rushing into the bilge due to a burst hose, and you find that the seacock is not operational due to neglect or lack of basic maintenance. If you'd like a no-cost, no-obligation inspection of your vessel's seacocks and thru-hulls, call us today at #MarinerServicesInc. at (239)776-4253!