MinnBobber
Well-Known Member
............................................I haven't been paying much attention to this 'white line' thing, not suffering it and having plenty else to fuss over. The observation that more PBW can increase it is interesting
White line really happens much more for those that pour PBW into piece, add hot water, etc.
Far better to mix externally where you heat up distilled water to very very hot and then add/stir PBW with the thought that less is better. Less PBW to not over-saturate the water and less time soak. Better to do an extra soak cycle than overdue time and concentration on one cycle.
And like others said, totally filling also helps avoid a line (like a bathtub ring).
An alternatibe is : I tend to fill 90% and CAREFULLY gently shake the piece to keep liquid moving and scrubbing. Usually 5 minutes does the trick. PBW mix is VERY SLIPPERY so use a wash cloth etc to securely hold the piece. No broken bubblers here please!!!
EDIT- I always use distilled water so there are no other minerals, like in tap water!! Nothing but pure water and PBW