I have two 8' blades coming in this week and would love to get some ideas where to put the pumps. I have a 21XD and have a 36V trolling motor so its going to be very tight in the back compartment. I do not have the aux gas tank. I'm thinking i may have to put them in one of the storage compartments behind the seat or possibly under the seat where the plastic tray is. Let me know if anyone has any ideas or pics. Thanks! Lance