Using inversion or rotary?(posted 8357 days ago)What developer and dilution?
Jobo usually includes a sheet with all of it's tanks showing both the rotary and inversion amounts, also I believe you can find the information on their site:
http://www.jobo-usa.com/instructions/instructions_misc_tank_and_drum_c apacities.htm
Hope this helps but I believe it is only for rotary.
Just put the reel and spindle in, fill with water and sump into a measuring device for a foolproof answer!!