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I'd start with EPAnet: free, unlimited pipes. Then, if you don't find it fulfills your needs look for other products. I've used EPAnet for simple rural water systems and been quite satisfied. I have heard others with more complex designs, such as variable speed pumps etc, having problems...

I made some very introductory level video tutorials on setting up an EPAnet model. Feel free to see if anything on them helps: http://www.youtube.com/watch?v=Ac36MoQFqzw

I can comment on the pump pulling and video logging: If the well is a typical submersible well and nothing goes wrong, both should be able to be done in one day including reinstalling the pump. However, things can go wrong. I was recently inspecting a pump replacement on a 8” well with...

Thank you for your responses. I eventually made my decision to install dry barrel fire hydrants after calling the local fire department who told me most of the other fire hydrants in the area were dry barrel, and they advised that is the best route.

As this was an agricultural well that is now going to be used as a water source for human contact/consumption, one good question to ask would be: Was the existing well drilled/constructed to meet the requirements of a sanitary drinking water well, and if not, can it be modified to meet those...

Does anyone know of a good reference that prescribes (in terms of temperature/climate) when to install dry barrel fire hydrants? All the information I can find simply states dry barrel fire hydrants should be installed in colder climates, but I can't find any guidance as to how cold, i.e when...

Does anyone have an installed cost estimate for a 2500 gal community drinking water pressure tank? I'm putting together a cost estimate to replace a couple of them. Also, names of manufacturers would be helpful. System pressure does not exceed 150 psi. 2500 gal is the stored water volume...

Try this website: http://www.mechequip.com/npsh.html It has some good examples of NPSH calcualations with submersibles included.