Just a little info on them. If you can find a place that sells the attachment that goes on your faucet to fill a waterbed, it is exactly the same thing as a python. Basically, all you need to make one is the faucet attachment, a regular garden hose (just probably won't be able to find the clear on like the pythons have) and you probably will need a close off valve for the end so you can stop the water when it finishes filling, giving you time to get to the sink and turn the water off. You may also want to work on attaching a gravel vacuum to the end so you can vacuum while you are draining. Personally, since I'm on city water and have to pay for it, I vacuum and drain my tanks the old fashion way, by syphoning and just use the python to fill them.