Unicolor 16x20 processing tube for 8x10?

[pdoyle]

Is anyone out there using the Unicolor 16x20 tube for 8x10 film? It should hold 4 - 8x10's but I am unsure as to how much developer I should be using. I guess that there are two issues:
1) how much liquid for the tube volume and
2) how much developer for 320 sq inches (4-8x10s) of film

I will be using Diafine 1:1.

Thanks for any help!
Pat

[pablo batt]

hi

i have the original instructions

16 x 20inch takes 250 ml per print

i know this is how much the tank holds before it overflows the pouring channels inside the drum

i think that a 300-400ml should be fine for film

p