Reptile Basics now carries rodent watering pieces! I ordered all mine this morning and can't wait to set it up. They have 2 nicely written pages with pics to show what they are talking about. In case anyone is interested, here are the links.

http://www.reptilebasics.com/store/home.php?cat=268
pieces^^

http://www.reptilebasics.com/water_system_buying
buying guide^^

http://www.reptilebasics.com/water_system_installation
installation info^^