It's easy to fix a leaky water cup and only takes just a minute to correct the situation as long as the cup has not been damaged in any way.
First try cleaning the cup and yellow float, then try tapping the yellow float and it should fix the problem. If this does not work remove the red cup and check to make sure nothing is interfering with the float. If that does not do it, remove the black part and check for debris, clean it and put it back together and that should fix the problem. If the cup is leaking where it is attached to the pvc, bucket or barrel, you can unscrew it and use white thread tape around the threads. These fixes should hold long enough to purchase some new drinker cups. It is a good idea to to keep extra new drinker cups on hand just in case the repairs don't work.
First try cleaning the cup and yellow float, then try tapping the yellow float and it should fix the problem. If this does not work remove the red cup and check to make sure nothing is interfering with the float. If that does not do it, remove the black part and check for debris, clean it and put it back together and that should fix the problem. If the cup is leaking where it is attached to the pvc, bucket or barrel, you can unscrew it and use white thread tape around the threads. These fixes should hold long enough to purchase some new drinker cups. It is a good idea to to keep extra new drinker cups on hand just in case the repairs don't work.