My Poi has decided that each of her water bowls should serve different purposes and one of them is for dunking food in.
We have three water bowls set up in three different areas in the house. One of the "bowls" is actually a large, shallow tortilla holder that I put on top of her cage hoping she would use it when she felt like a bath. It's by her bowl of fresh food and a bowl of pellets. She ONLY drinks out of this dish. She doesn't put anything in it except her beak to get a drink.
Another water bowl is on her java stand and it is the divided bowl that came with the stand. 1/2 of the bowl has water in it and 1/2 the bowl has pellets in it. She dunks her pellets in this bowl to moisten them. She doesn't drink out of this bowl and she doesn't bath in it.
The last water bowl is a shallow stainless steel dish that is set up at the bottom of her metal playstand. She uses this to bathe in. She doesn't drink out of it and she doesn't put stuff in it other than her body. She showers with me most mornings, but she still occassionally decides to use this bowl for an afternoon bath.
All three water bowls have pellets/food by them, but she only uses one of them for food dunking. Odd, but I'm not complaining. I would rather only have to clean one a few times a day than all three.