I agree conpletely with metengr - why do you want to do a hydro? You should be able to get the results (check for leaks) with the test he suggested. If you want to do a true hydro then you need to have those valves installed and in place to check for seal leaks on them also.
Sir - You are already likely using fuel oil at your workplace. Fuel oil, or sometimes #6 (bunker oil) is used to fire all coal-fired powerhouses. The oil is used to pre-warm the tubes and allow them to stretch and grow prior to feeding the coal to the cyclones. Your oil, which is most likely...
I may have access to materials for your needs. I have a friend who actually has a portable ethanol unit - but he has no idea what to do with it. He has several boxes of drawings, and I think some are of site plans. I am working with a guy in Louisiana with an ethanol project now also...