The following table shows the capacity of C-41 chemistry if used
without replenishment. Refer to the chemical data sheet for capacities of
film of other types and sizes, because they are not the same for all films.
When you are not using replenishment, the development time must be increased
for each successive batch of film to compensate for the exhausted developer.
For 1 pint kits divide one gallon capacity by four.
compensation is used only with 1-pint units. Replenishment is normally used
in the 1-gallon and 3 1/2 gallon sink-line units.
All color processes should be replenished instead of adjusting the
Properly used replenishment procedures will greatly
increase the useful life of your chemistry. You save money since new kits
It is not necessary to dump the chemistry except for cleaning. A filtered
chemical system is recommended since dirt contamination also limits the life
of solutions. Instructions for replenishment in millimeters per square foot
are packaged with all color chemicals and should be used as a starting
point. Close monitoring of your process may indicate a need for increasing
or decreasing the replenishment rate of your particular process.
using the proper replenishment rates and calculating carefully the actual
quantities of replenisher solution required.
You can expect inferior results if more than three square feet of film are
processed without replenishment.
Refer to current processing instructions
for most up-to-date information.
Replenisher should be added to the tank solution just
prior to processing the next batch of film.
When you replenish, remove
enough tank solution to allow the addition of the replenisher solution.
Remove, but retain, more than enough solution from the tank to make room for
Add the replenisher and return enough of the retained
solution to bring the tank volume to its original level.
balance of the retained solution.