Making sure the chickens have clean water is a pain. I have a gallon sized waterer similar to this one. I have it on top of patio stones stacked two high. It's close to 6" off of the ground and I still find dirt and leaves in it all the time. I've written about this before. To solve this problem I created a waterer with poultry nipples and a PVC pipe. That has worked alright, but it only holds a little more than a gallon of water.
So, I decided to make another one, this time with a larger reservoir. I bought threaded poultry nipples from Amazon. These are meant to be screwed into a flat surface like the bottom of a bucket. I wanted to see how they'd work in a PVC pipe.
I started by cutting a section of 3/4" PVC pipe to length. Then I put a clamp on it to keep it from rolling. I marked every 10" for holes. I then drilled the holes with a 5/16" drill bit. (This is important.)
Next I wrapped the threads with Teflon tape.
I attempted to screw these things into the pipe. They wouldn't go. I thought for sure that I had read that they required a 5/16" hole. That's what I drilled, but they would not go in. I eventually got frustrated and got out the 3/8" bit. That made the hole plenty big. But, the things leaked like crazy. I solved that problem with some silicone. I waited over night for the silicone to dry and then mounted the pipe to the chicken coop with these clamps.
On one end I place a slip to MHT PVC adapter. I closed it off with a hose cap. I did this for two reasons. It allows me to drain the pipe in the winter when there's a chance of freezing weather. I can also open it to allow air to escape.
The other end of the pipe has a slip to FPT adapter and an MPT to barb connector for connecting the reservoir.
My reservoir is a 5-gallon bucket. I drilled a 1/2" hole in it and inserted a 1/2" barb coupling. Surprisingly, this hasn't leaked.
Here's a picture of the entire setup. I have the bucket elevated on a log. I used irrigation tubing to connect the bucket to the pipe.
One final note about the poultry nipples. After I completed this project (with a lot of frustration) I read the customer reviews on Amazon. Someone posted that the correct drill bit size to use was 11/32". I used 5/16, which by my math is 10/32". That means that 1/32" of an inch caused me a whole lot of aggravation and time. I'll need to do a little more research next time.