He's full of something, but I doubt that it's bologna. Well, I suppose you could call it 'used bologna'.


Excess flow pushes dirt THROUGH sand filters, and washes the sand out of the filter during backwash. Excess flow, and the accompanying high pressure, can break the frames inside DE filters, and damages the cartridge itself in cartridge filters.

Yeah, he's definitely full of it, but 'it' is not anything nearly so nice as bologna.