How is the Solway Maxi Cup waterer? Is this a good product? I was thinking about getting one for our chickens and adding it to a 5 gallon bucket. If there is a better product let me know. I saw this cup for sale here: http://www.ebay.com/itm/Solway-Maxi-Cup-POULTRY-CHICKEN-POLT-DUCK-TURKEY-WATERING-DISH/321397710939?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m1438.l2649 I saw a lot of you use nipple waterers; I did like the fact that with the cup you can see water in the cup and know that there is water available (I worked with mice waterer devices that used a nipple of some sort, and sometimes they would fail and kill the mice).