Clear water is one of the old good images in dream books, read as clarity, honesty and a calm mind. Seeing the bottom stands for understanding something all the way through.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.