So, my ideal target is to build a water powered AC generator that when refined could possibly be fitted into drainpipes and create a household source of energy everytime somebody uses water. My first model is a bit crude relative to my final goal but it conveys the principal that when developed, should work as more or less as I have described.
A generator works by a magnetic field inducing a voltage into a coil of wire, which can be done by turning the magnet causing the coil to continuously pass throught a magnectic field. A water powered wheel can be used to turn the magnet and thus create an electrical current which can be stored in batteries.
I have made a generator with some flaws, it has not worked as I first expected it to and that is because of a few easily corrected factors.
In order to refine the model, I need a stronger and more concentrated magnetic field, this can be acheived by using an iron nail intead of the thin steal rod I which would concentrate the field and also a stronger magnet. I also would need a longer length of copper in order for my coil to have more turns and become a more powerful inductor.
Also, a better casing structure would improve it by holding the magnet as close as possible to the coil without  them touching.