It really is as easy as 1-2-3 before you number 2. Simply use the adapter provided in the box to connect the TUSHY to the water supply that fills your toilet tank. The included hose will connect the adapter to the TUSHY. There is no electrical hook-up, it's pressure based, all you need to do is turn the knob and water will come out like bum washin' magic! Takes 10 mins to install on standard toilets!