Old 550 in ground tank, how many inches is absolute minimum?
I was looking to run my old 550 in ground tank to absolute minimum before hooking up my new 275 basement tank. The old 550 is from the 1950's . Typically how far above the tank is the pickup and how many inches of oil would you estimate absolute bottom?
Without historical data from a run out, is to let run out. Everyone installed them differently, and if there was a water problem in the past, someone could've pulled up the line a little. Typically we install the new tank, fill it, run line over to burner, and run the old tank until its dry. Then do a proper change over.
Along with your other post, if you convert to one pipe, don't forget to remove bypass plug
This post was edited by an admin on April 3, 2013 9:45 PM.