I have nipple waterers both the vertical and horizontal kind for my chickens but is it ok for fresh water for the ducks IF I have a large stock tank for them to swim in and submerge their heads? Or do I really have to have a regular waterer for them? They will be in same run as my chickens which is why I ask and I know if I use a regular waterer then my chickens will also want to use it and I stopped using them in the first place to make cleaning easier and keep the water fresher and cleaner as well. Thanks