Pat,
Once again, thank you for your responses. Like I said, the main issue was not the sterile issue; I was responding to your comment. Not sure why all the emphasis; maybe I wasn't clear.
Just a tidbit on plastic though since we did head that direction: The chemical called bisphenol A (BPA) used to make plastics (including food grade), mimics the estrogen hormone and DOES leach into your liquids. Extra estrogen will make you fat, slow and tired. It can even wipe out your sex life. If it stays in your blood long term it can trigger cancer or other diseases. You can read more about it at
http://www.alsearsmd.com/tag/bisphenol-a/ . The test results were published in the Journal of the American Medical Association as well. Just because the general population does it, doesn't mean it's safe.
These studies are of course referring to humans. But, I will have to disagree on your theory that they are 'just chickens.' They also have a hormonal structure that can be altered and I do take that into consideration for their over-all well-being.
No, of course chickens do not need ACV to survive...nor do we, but it is a valuable nutritional supplement for the digestive tract as well as it prevents the growth of bacteria in your birds standing water; two qualities I would like to use it for year around. I've heard some say it has increased their egg production but rather than having a direct effect, it is likely due to another existing problem that the in-take of raw ACV helped to clear up such as a digestive problem that affected the hen's overall health and slowed her production.
I have had quite a bit of experience raising chickens including running birds on pasture in tractors...with which I used the Plasson bell waterers (Hard plastic). I personally do not care for them. I have tried a number of waterers and have noticed that algae builds up faster during the summer months in the plastic waterers than in the metal waterers. BUT, this post was not at all intended to be a discussion of plastic vs. metal...I think we got a bit off track. I am aware that some systems do accommodate plastic but as I said I am not fond of it. It's a personal choice; it wasn't intended to be the heart of the conversation. But again, thank you for your input. I was just hoping someone might have some insight into a year around watering system that did not react to ACV or other supplements OTHER THAN PLASTIC.
***One more note: I didn't see this stated but for those considering using apple cider vinegar, look for RAW, UNFILTERED vinegar (you will see sediment in the bottom.)
Pasteurized vinegar does not have the quality of raw organic apple cider vinegar. Through its processing and distilling, its been stripped of everything beneficial .***
Have a great day!