In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
I've started my own thread from questions I raised on the 'changing the garber filter' thread.
I was stating that the vac level in our Roth tank goes up as the oil level goes down, reaching as high as 4 at 1/4 tank. We have a 50 micron filter at the tank and a 10 micron spinon at the burner. I know there's debates about this but we've been advised that the 50 micron will catch the heaviest sludge without shutting down the burner which might happen if we only had a 10 micron. This is a Buderus G115-3 with Riello 40F3. Our oil co uses Avalux oil treatment. This is a one-pipe system with a tiger loop. This was all installed in 10-06; shortly after the suction assembly failed and they replaced it with a 3/4" tubing and 'reset the bt depth' whatever that means. From the thread below I'd guess that we'd be better off putting in the hard piping.