I just mixed up another 5 litres of XTOL using distilled water, and dev'd a roll of Tmax-400 (TMY2). I first did a leader-test, which came out with acceptable density. The roll was dev'd in 220 ml of undiluted XTOL in a stainless steel tank for 6-1/2 minutes at 20C.
But the leader of the roll has considerably lower density than the test-leader, and the roll is thin. The developer was yellow when poured out. Any idea why new XTOL would fail like this? I'm also having identical failures with homebrew developers, so something is happening that's not XTOL's fault.
Some ideas I have:
I'm hoping somebody out there can offer some help.
Thanks,
Mark Overton
But the leader of the roll has considerably lower density than the test-leader, and the roll is thin. The developer was yellow when poured out. Any idea why new XTOL would fail like this? I'm also having identical failures with homebrew developers, so something is happening that's not XTOL's fault.
Some ideas I have:
- 220 ml (undiluted) is too little to develop a roll. I have a hard time believing this because folks dilute XTOL all the time, using less than 220 ml per roll.
- My distilled water has an additive secretly added by the grocery store called "DK" -- Developer Killer.

- Iron is leaching from the tank (far-fetched, as there's no corrosion).
- Somehow I'm contaminating the developer.
I'm hoping somebody out there can offer some help.
Thanks,
Mark Overton

