I installed a new rain barrel fed waterer in the run. ( tried & tried to post a pic, couldn't get it to work) So here's my question; my chickens have had acv in their water since they were fluff butts. The barrels are rain water, 55 gallons, so I don't want to treat them with acv. So will it upset the chickens' system to not have acv in their outside water during the summer? There is a 3 gal waterer in the coop that I add acv to when I refill it.