While trying to fix up the "perfect" fresh water supply for my chickens I came across a better poultry water nipple. It is actually a little cup with a small lever that fills when the chickens drink. They are a little pricey as far as water nipples go but I think they are worth it. I have realized from watching my chickens they don't need too many per chicken. Mine all try and drink from the same one anyway. Silly birds. Here is the info. if you are interested. I guess it is ok to post this on B.Y.C.. They are available from Cornerstone Farm Ventures, Inc. they are Model 300 Cup Drinker. Cost is $2.00 each. Check it out. Thanks !