Starting to get the boat ready for action. I have been delaying taking the trailer in for service for over a month, but decided to check the master brake fluid cylinder last night. There was only the black plastic cap that popped off, with no secondary cover on the inside. There was no brake fluid present and whatever was there was caked dry. I have no idea how long it has been empty, but the trailer has been sitting over winter for the past 6 months. I am guessing this is a problem, but any insight into how bad of a problem would be helpful. Thanks.