Re: 19 foot Sportsman
The floor drain system used in the 1900CC is typical of any number of boat brands in that size range. The cockpit floor is plumbed overboard through a hose and exits under the outside water level. The fact that the exit is under water causes a good bit of discussion mostly because the physics are misunderstood. If the floor level at rest is above the outside water level with a properly positioned load, the water will exit the boat. A valve of some sort is needed though to keep water from coming in when the boat is put in reverse or when the load shifts effectively pushing part of the floor under the outside water level, such as is the case when one or two large passengers go to a rear corner in the boat. Whether that valve be a simple rubber flapper or some sort of check ball it will eventually need to be replaced and routinely need to be kept clean for it to work well. Replacement parts can be obtained at any number of marine supply outlets or through a Key West Boats dealer.
To address the rail issue when installing a troll motor on the 1900cc; that boat comes standard from the factory with a high rail. A low rail is an option and should be ordered when a troll motor is to be used. Changing out the rails is a pretty intense undertaking because that high rail is through bolted. You can get it off by grinding and cutting the bolts but you then have a lot of holes in the deck that will not match the holes needed for the low rail. If I had an older boat that I wanted to install a troll motor on I'd cut out the section of the rail that was in the way and put some caps on it. I've seen this done and it looks different, but not terrible. The good news is that the wiring harness for the troll motor is likely already in the boat whether it came with the high or the low rail.
