I bought an RV water pump from Amazon that would match the same connections where the pump in my TT is installed. It's a Chinese Shur Flo knock off which as I recall was only about $60. Figured it could pump water from my containers in the pickup bed where I have a 12V power outlet, very kindly installed at the factory, and should my main pump ever fail I can merely unscrew the fittings on both ends, insert pump, and connect wires.
That will then give me plenty of time to repair or order new pump.
Just a note, those drill powered pumps that are really inexpensive don't have "food grade" rotors in them and who knows what "not fit for human consumption" chemicals can be released from their composition. Great for moving fuel, motor oil, etc. Potable water? Not so much.
"A wise man can change his mind. A fool never will."
"You only grow old when you run out of new things to do"
2018 Flagstaff Micro Lite 25BDS
2004 Nissan Titan