The simplest way to use chicken nipples on the side of a bucket is to use the chicken nipples in the following link:
http://www.ebay.com/itm/5-Horizontal-Side-Mount-Poultry-Chicken-Watering-Nipples-/161294591700
You just have to drill a hole and the nipple has tapered threads and it will...
If you would like to make it more automatic, you can use some of the stuff I used in this project. I have been using it for over 6 months now and haven't had to do anything to it.
https://www.backyardchickens.com/g/a/6888832/jorjfdjungles-automatic-chicken-waterer/
An easy way to find out if your number is already used or not, is to Click on "Search This Thread" and type in the number you want to submit. Then cllick "Search". If nobody's post shows up then the number is not used yet. This is alot easier than doing what I did, which is look through all the...