Yes that is the pump I use. Provides enough pressure to fill the water tank. (I also don't have a gravity fill port) This pump also provides me the ability to spray off dirt or whatever if needed as the pressure is great coming out of the end.
I was just unloading the truck from a trip and here is a quick shot of the tank end:
I hook the hose to the lower tank port, then open the gravity feed vent. I can also use the gravity vent to fill the tank if there is a source without a proper hose setup.
I keep the tank in the garage when not in use and try to keep it as dry as possible when not in use. I use a mild bleach solution to sanitize and then rinse if it has not been used in more than a month. We typically only need it 2-3 times per year. Once dry, I keep the caps closed to keep out bugs, etc. I have not had any problems with gunk or bugs in the tank.
