Can anyone give me the equivilent measure of sodium carbonate to match 5g/lt of borax for the B solution? X-ray film is cheap and easy for 8x10 and larger BUT it has emulsion on both sides making developement a bother. Processing in a tubes leaves the back mottled, folding it into a taco in a window screen tube leaves impressions and tray processing carefully with a sheet of glass in the tray is one _ sheet _ at _ a _ time. This leaves dip & dunk with hangers and tanks, lots of chems = divided developement. Thank you.