I woke up this morning thinking about my water tank idea. If I'm going to do it, now is the time. It's pretty simple and it uses very little space that isn't already wasted. It is in the area at the bottom of the V at the footwell and perhaps a couple of feet on the other side of the bulk head forward to this. It will be made of 4" pipe. Each foot of length translates into 1/2 gallon of water. Between the two hulls, it will amount to five gallons of water.