Pumps: Banana boats and water trampoline do not require high-pressure pumps; they are low-pressure high volume products. If you could measure the pressure in a fully inflated tube, it would be around 2 -3 PSI.  For Water Trampoline owners, the MAGIC AIR DELUXE 110/220v VOLT is a fast and efficient way to fill your trampoline tube.  You can also use a shop vac on reverse. For banana boat users, the MAGIC AIR 12 volt will provide ample power to fill your banana boat and is available with ether alligator clips to connect to your boat or car battery or with a plug that fits into your boats cigarette lighter.