It just came from Rebuilt
and have checked most of suggestions.. Do know about the noise change and how to adjust but still does not clean nearly as well as the D 80 and I cannot understand why// Also not nearly as loud.
Recently got a Heritage II with the small nozzle.
Is it just me or does it not clean as well as the Dual Sanitronic 80 It sure seems that is does not have as much power. (not near as loud)