Or kill several birds with one stone.....
NO, it's a water cannon!
NO, it's a spa vacuum!
NO, it's a water baloon filler!
STOP, you are all correct!
Water BlasterI had one of these for my boat and, once I got my spa, I've found it to be extremely useful, especially the longer model...reaches down to the bottom of the spa without getting wet...and removes very little water. I also have a shop vac but this beats it for cleaning out dirt since there is no setup.
Oh, BTW, it makes one helluva good water cannon too! 8-)