I was sent this RentACoop float valve to review, along with an ample supply of the different fittings that make up the S.N.A.P. watering system that utilizes 1/2 inch PVC pipe. Using the clever through-wire fittings, the pipe can be cut however you wish and mounted to hardware cloth either from the inside or the outside of the coop/run, and then the little watering ends are simply screwed onto the post that runs through the fence. I ordered the mini cup waterers to go with this, which I absolutely love; they are a very useful hybrid of the larger cup waterers and the peck-valve-type waterers, and they stay clean.
I have a Sentinel coop from Tractor Supply, and at first I thought I was going to have to mount my PVC pipe on the inside because of the way the hardware cloth is affixed to the frame, so that the corners of the coop/run jut out beyond the containing hardware cloth. But then I realized I could easily cut one piece of pipe to fit (with an elbow on one end and an end cap on the other) flush against the hardware cloth, between the two corner frame pieces. So now I can have a water reservoir on the outside of the coop that feeds water to six mini cup waterers on the inside of the coop along the one wall. I have to pick up my PVC pipe before I can build this out, but when I get it done I'll post photos so you can see how I did it. For now, I'm going to post what I have now, which is terrible!
Watching RentACoop's SUPERB videos on how to install a S.N.A.P. system will show you better than I can convey in words just how awesome this system is. As long as you remember to account for adding in the fittings to the length of your pipe, any idiot could build one of these. I happen to have a PVC pipe cutter, which is a very helpful tool if you're cutting a lot of PVC pipe (which I do for my garden), but if you only have a hack saw and a drill, you can still do this. They even include the exact hole saws you need to install the float valve and the shut-off valve! You cannot go wrong with this.
Here's my planned setup (as in their video):
Float valve into the top of a square water bucket sitting on top of blocks to chicken height
Shut-off valve into the bottom of the bucket
Short piece of PVC pipe connecting S.N.A.P. NO-GLUE shut-off valve and elbow
Long piece of PVC pipe installed on the outside of the run with posts through to waterers on inside
Anyone who has a Sentinel coop knows it's