Personally, the phyton water change system is not for me, I used one for about two years and wasted a lot of water unnecessarily. So I came up with my own system, which is not for everyone for sure, but it works great for me. I use a
submersible pump that I bought through amazon for about $15.00. I build an attachment for my kitchen sink out of pvc pipes. I do use the brass attachment that came with the phyton. You can order just the
python brass attechemt from Amazon.
I made a refill out of pvc pipe at the tanks.
I use two water hoses one to fill and the other to empty. I set the pump inside the tank to pump out the water. And then line up the valves to use the sink to get the water to the right temperature. Then line up the valves to refill the tanks. You could use large plastic trash cans, new ones of course to fill your water with for preparing to use in your tanks as others have suggested. Get you two of the cheap
submersible pumps one to pump water out of your tanks another for use inside the large plastic trash can on wheels. I have used these cheap pumps for several months now without any problems, however, I suggest you use a threaded pvc tap to screw into the pump and not the cheap plastic taps provided with the pumps. One of mine broke, but it was easy to unscrew the broken end and use the pvc tab instead.
One more thing, if you have sand substrate, do not use the submersible pump without a plate under it or inside a plastic Tupper ware container. The pump will pump up the sand through it and ruin it, without protecting it from the sand. You can hang the pump inside the tank just above the substrate if needed. Because I use pea pebbles for substrate I don't have a that probem.
