Hey guys! You definitely want to rinse them off after every use, back the drags off, and hit them with some WD40 or Corrosion Block every so often. I send them out once a year to get serviced. The reason for backing off the drags is to prevent the drag washers from getting compressed. Once that happens, you'll have a sticky, stiff drag on your reel.
Get a VS and don't worry about it. (just kidding)
I lightly rinse off, a little soap on occasion, back the drag off, and check the screws (bail, housing,etc) on the reel when you think of it. A little lube of your choice on the roller, etc and you are good to go. Nothing worse than a lost screw on the tip of the jetty.