That is actually how I pictured it in my head, like in the movies when someone puts an entire box of soap in a washing machine.
Many years ago and this is well past the "statute of limitations" I worked at a small (By todays standards) grocery store located in a shopping mall. This mall was one of the "open style" that was popular in some parts of the country for a time. Well one of my fellow employees suggested that we dump some detergent into the water feature located in front of the Sears store at the other end of the mall. Since we had the material handy as we did work in a grocery store it was a no brainer. We were all of the teenage time in our lives so it didn't take much to convince us that this was a good idea. So late one Sat. night after we finished work (You see we worked late and sometimes all night at the store stocking the shelves for Sat. shoppers.) we hauled a whole case of liquid detergent through the mall and dumped in into the fountain.
What we didn't do was turn on the fountain at that time, which would have resulted in what is pictured in an earlier post. What did happen was they turned on the fountain in the morning and then quickly shut it off and drained it.