We made our waterers from advice that someone posted to BYC:
https://www.backyardchickens.com/web/viewblog.php?id=27917
I too was so frustrated with dirty smelly water day after day.
We bought 3 chicken nipples here:
Tek Supply
360° Super Flow Push-In Nipple
Item# WC1045...
Here is our submission for the coop design contest:
Cackle Cabin!
Go here to see all the pictures :
https://www.backyardchickens.com/web/viewblog.php?id=62184