HC-110 Dilution E: Confused about how much developer to use
I would like to use Dilution E with my Tri-X exposed at 400. Dilution E is explained at the Covington site as follows:
||1rl steel tank 240ml
||1rl plastic tank 300ml
||2rls steel tank 480ml
||2rls plastic tank 600ml
I have a steel Kindermann 5-roll tank which holds (with spirals submerged, which is how I assume I should measure) 1030ml. Approximately how much HC-110 should I use when developing five rolls in this tank using Dilution E?
Edit (to prevent people thinking I'm totally mathematically inept): I would have thought it would be a total of 21ml for five rolls but the reason for my question is I read somewhere that one needs 6ml per roll which the above doesn't work out to be.
Many thanks for your help