Quote Originally Posted by Photo Engineer View Post
I have had the same problem with leakage and it is usually one of the fingers bent or the lid very slightly off, or the cap slightly off. This can be so tiny, you cant find it but water can.

As for presoak, there is an excellent test posted here somewhere that shows better temperature in the tank with a presoak which is critical with 100F processes.

PE
With plastic tanks that insulate heat, it is excellent.