The bidets are for a normal home toilet that has a waterline coming out of the wall below the tank and a flex connection/pipe that goes up to the tank for fill.

You shutoff your water, disconnect the toilet fill line, add the bidet connection in-between with a T connection, and hook your toilet back up. They share the same supply line.

And it's very cold water depending on your geographic region and time of the year. Not sure I'd want to try it in Alberta during the winter.