Seasoning new replenished developer

[presspass]

Years ago, I used X-tol replenished and would 'season' a new batch with some from the old tank. I'm now using D-23 replenished, and I don't know if I should use some of the existing stock to 'season' a new batch. I'm using a 1-liter bottle for the stock, if that matters. I like the results I've been getting, so I plan to stick with this for a while. BTW, is Kodak's 25 rolls a good estimate for deciding when to mix a new batch?
Thanks for the help,

 

[Ian Grant]

You could add a little of the old to season. It's D23 when fresh but becomes D25 when replenished. 25 rolls seems about right but I always used much larger volumes and we used hundreds of rolls before making fresh batches.

Ian

 

[Gerald C Koch]

Ass Ian implies, replenishment does not work as well with small developer volumes. If you are using only 1 liter you might consider using a one-shot.

 

[presspass]

Thanks for the help.This is the second liter of replenished D-23 I've used since early November. Typically, I shoot 2 to 6 rolls of 35mm 36 exp a week; while it's not as large a volume as I once shot, it's still a bit much to use D-23 full strength as a one-shot. I have used it 1:1 and 1:4; both work well, but the times on 1:4 are typically 20 minutes. The 1 liter amount is just the size of the storage bottle I have; it's also the amount for a 4-reel Jobo tank that I use.