[Dogman]

I went out last week to remove the battery and found all the oil from the hydraulic pump reservoir laying in the catch tray under the pump. Trailer has not been used for about a year and the slides have not been opened for about 6 months or so. Had no problems at all the last time we used the trailer. It was winterized and put in storage last winter and now is sitting in our driveway (for sale). I'm thinking maybe a seal dried out and all the oil just leaked out?? In any event I need to fix whatever the problem might be before spring arrives, soooo, any ideas what might be going on and what do I need to do to fix. Thanks