Hi OND,Has there been an update, or did I miss it?
Sorry, I just returned from a business trip but meant to post before leaving.
I have replaced the parts and took pictures of the process. It took about two hours from start to finish; that includes draining the coolant, flushing the system, removing and cleaning the expansion tank, removing and replacing the thermostat, removing and replacing the water pump. I took many pictures of the process and I will post them as well (can't upload pictures from work).
Anyway, there is a weep hole on the water pump and that is where the coolant was leaking. The cooling system has been running very stable since replacing the parts and the Sprint feels like she is running smoother. Since there are many pictures, I will create a PDF document that shows the parts/process and upload the link later tonight.