Use of glass marbles (clear ones) is OK for acidic solutions, but a no-no
for alkaline ones (like developers) as glass dissolves slightly in high pH
solutions, creating an undetermined environment.
>"floating lid" can also be used). I usually divide my chemistry
>between several smaller containers, for example one gallon of
>developer into 4 @ 1 lt. bottles filling them to the tops.
Floating lids are fine for wide containers (or trays) but won't work in
bottles. Dividing use quantities in separate bottles is best method if
possible; it's the one I use.
Sil Horwitz, FPSA
Technical Editor, PSA Journal
silh@iag.net