Last year I bought myslef a new 18ft North River Mariner. I have bought all sorts of things for it. depth find, stereo, rod holders ect. I am currently looking for a water pump I can put on it so I can use a hose while I'm out on the river. I would like to know how much it will cost, where to get one and how hard it is to install. Can someone please point me in the right direction