I have just developed 2 sheets of 4x5 using Xtol which I use Replenished.

I have done something daft and was wondering if I may have now killed the Developer...

  1. I developed the film and then poured the developer into a Graduate
  2. I used my normal Stop Bath (Ilford's) and then poured that back into it's own bottle through a plastic funnel
  3. About 5 minutes later I poured the developer from the graduate back into it's own bottle but I used the same funnel without cleaning the funnel


Could I have now killed the developer by using the same funnel ?