That sure sounds like an interesting project! Unfortunately I am not aware of simple techniques to measure the amount of oxygen in water. I do know that the solubility of oxygen is pretty low. For instance at room temperature there is only about 10mg of oxygen per 1 liter of water. You can check out this website for more information about predicting the amount of dissolved O2 in water:
Also, there are other factors that can contribute to the corrosion of pipes which may be interesting to consider. Here are two articles discussing pipe corrosion:
Click Here to return to the search form.