I got a AP develop tank, I feel that's very good. But I still have two
question about it.

1) There is a table as below marked on the bottom of the tank, and I do
not fully understand its meaning. Can anyone explain that for me?

1 x 135 / 126 = 375cc
2 x 135 / 126 = 650cc
1 x 127 / = 490cc
1 x 120 / 220 = 590cc

2) After a test, I found 375cc solution can submerge one reel, and
650cc can submerge two. My 2nd question is, can I use only 375cc
solution for the processing? I remembered people adviced that it is
best to let the solution fill the whole tank even when process one roll
in a two reel tank, that is 650cc in my case. But I think there must
be a reason that AP mark a 375cc in its tank. Actully, since the tank
provides a rod (on the center top of the cover) to stir the solution,
so I never need to shake the tank by invert it. Hence I belive there
is NO change the film will exposed to the air in the stage of
agitation. So I want to confirm that I can use only 375cc solution for
processing.

-
narke