make sure their is no galvinized or steel parts...use only stainless steele or plastic for bird watering systems.
Really? Why? Now I'm going to have to have DH look at what he used in the hose to put the system together. We used a washer hose, and I know there is a little metal filter thing that only lets water pass through from the bucket to the hose. Plus, the nipple itself has metal on it. I believe the rest is plastic (a food grade bucket, and PVC pipe parts).