I had a piece of starboard laying around and mounted it on that. I mounted the starboard to the trailer by drilling some holes in the checker plate that connects the wish bone on the trailer and tapped the holes so the mounting bolts had something to bolt too, as this area is all boxed in. The tank I bought already had threaded mounting holes in it so I bolted though the starboard and into the tank. The pump is a low pressure pump so as soon as I open the valve the pump kicks in.
Tested it on the weekend, put the boat in the water and opened the valve. Pump comes on, drive away and park truck. Turn the truck off and the pump shuts off. Go fish, come back, shut the value ,start the truck and put the boat on the trailer, open valve, pull out. Put the tie downs on shoot some water on the axle and springs and drive away. A minute or two down the road, I always pull over and double check things anyway turn the valve off and still had about a third of a tank of water left. I figure there is enough water there to flush the kicker or spray the boat down a bit. The way that it works the salt never really has a chance to sit there very long and by the time I pull over and double check things they are flushed really well and by the time I get home they are all flushed and dry.
I took pictures to compare to, when I check the brakes in the spring. I figure the whole thing cost me about $150, if you had to buy everything about maybe $220. Way cheaper then new everything. Got a price on new Disc brakes and it was $2600. Thats what made me think of this set-up. I know discs are way better but for now this will have to do. I installed all new wheel cylinders,bearings and seals, brake fluid, and grease while I was at it. The shoes and drums were still in great shape, so I left them alone. We will see how it all looks in the spring to see if it was worth it.