I bought the RentACoop chicken water cup to replace the pecking kind of water cup. I wanted a large, clean source of water for my girls that they couldn't knock over. After I installed the original "peck" cups - ones where the chicken pecks at a yellow stopper to make the water flow - I wasn't entirely satisfied. So I bought these cups and am so glad I did.
Physically, you can see from the picture that they're much larger than the pecking cups. One big problem I had with the pecking cups is they'd be dry when I'd check. I saw the girls peck at them, but I was worried they weren't getting enough water. I live in a hot, humid climate and making sure they get enough water is very important. I like that these cups are always filled, which I think attracts the birds to drink more.
Also, you can see in the picture that these come with a rubber washer and wing nut, which didn't come with the pecking ones. Installing the pecking ones, I used plumbers tape but still got a slow water ooze around the spout. I added some silicone around the hole but there was always a slow drip wetness around the base of the waterer. I took out the pecking cup and installed the new cup in the same hole (same size), with the rubber washer on the outside and tightened with the wing nut. It was so easy and I felt satisfied it was installed well. I've never seen one drop of water since. Little thing but made a big difference.
I also like that the water is clean (I use a bucket with a good lid). My original waterers sat on the ground and always had a lot of dirt in the bases, even though I cleaned them several times a week. No longer a problem, although their beaks do drop dirt reside in the waterer cups. It settles to the bottom so there's still plenty of clean water in the cup. I just scoop out the dirt with my finger but it's really not a big deal, it's normal for birds who dig around in the dirt all day! I also freeze water in metal loaf pans during the summer; the ice bricks pop out easily then I drop them in the bucket to keep the water cool (without having to empty out our ice maker all the time... I'm looking at you, husband!).
RentACoop even sent me an extra water cup with a little card, which was so nice. I debated how many cups to get and ended going with the smaller number, so I really appreciated getting an extra one as well as the personal touch. I would buy from them again and am really happy with these water cups.
I am not part of a freebie network, and I did not receive these for free; I paid with my own money that I work to earn so this is truly my honest opinion. I installed them and they were in use for about a month before I wrote this.