I have a "Python No Spill Clean & Fill [75']" I got from "Petsmart" for about $75. I wouldn't want to be without one. I found a "Faucet Pump" for the python the other day (again at "Petsmart". I don't have a lfs) for about $6. I've tucked it away some place safe. I hope I never have to use it. But if I need one I got it!
All you have to do to start your standard $8 gravel vac is put it in the water and shake it up and down for a minute. That's simple. I'm just tired of filling and lugging several old milk jugs of water around the house to refill the tank when I've finished vacuuming.
you can also use a turkey baster from the dollar store to start a syphon. Just squeeze the air out then put it in the hose and release, it also works for us at work when we start a drip acclimation.