My wife had bought me a Python system, used it once, slow as heck, and returned it. The hose diameter is too small and eductor is really inefficient and it made from real cheap plastic. I do the siphon out the window deal to get the water out on all my tanks and fill with a hose attached to the kitchen sink. The faucet adaptor, garden hose and fittings are all available at Home Depot along with most any home improvement or hardware store and for less money you can build a better system. On the siphon end, I made a U to go over the edge and adjusted its length to my desired ending water level, just start it and it only drains as much as i want even if I get distracted, with young kids this isn't uncommon, lol. To fill it I just added a float valve and added a line vent to aerate and a hose bib to feed declorinater in and it fills on its own too. The only thing I should have done and will is add quick a tee and another fill set-up. As it is I have to wait and fill each tank one at a time, but not too awful. I only do the hand fill on my shrimp tanks, don't use water straight from the tap on them. The only thing I would recommend is using potable water safe hose, I bought 100' x 3/4" potable water hose for a boat and cut it up to the lengths I needed. Good luck.