I have tried unsuccessfully to run a 600 litre/hour pump with an 18 volt battery drill to transfer water between tanks on our rural property. It didn't work because no matter how tightly the chuck was done up on the 1/4 inch pump spigot it kept loosening after a few minutes.
I thought it would be a great and planet-saving system as the battery was charged by solar power.
These days I transfer water between tanks with a 12 volt pump which has the motor integral in the pump and recharge the 12 volt battery by solar.
