If I may jump in- thanks. John- your streak-proof agitation- What does that involve(half-full tank, inversion)- Half-full of chem, with a "full" load (max#) of film in tank- constant inversion?- or slightly more than half-full with chem, and a "half" load (max/2) of film in tank, normal agitation?- Thanks- MikeD(posted 8615 days ago)