Python Water Change System... experience?

OK, so i have 2 tanks a 10g tropical tnak which i wnat to turn into a community (long story, dont ask lol) and my 5g lonely betta tank.... i really hate lugging water to and fro he tank, so i was wondering about the python system.... anyone wanna explain how it works? im still gonna put the ater in the buckets, use dechlorinator, let sit for 24hrs THEN vacuum out my tanks and re-fill them wiht the water, cuz lets face it lugging 16 gallons of water every week hurts like hell lol... and with hopes of upgrading my 10g to a 20 or 3g, i cringe when water change time comes around!! lol so how does it work? does my plan sound good? and experiences with this system?? THANKYOU!!=]