Almost all the years I have used the normal Acetic Acid stop bath for both Black and white (45) or colour printing. (24) One time I changed over to citric acid based stop bath and as usual used it as and when I did printing using my Nova Deep tanks. The one occasion I used the citric acid but didn't do any printing for about 2 weeks when I went to use it, the top of the stop bath slot was filled with mold. I have never had this with acetic acid bases SB.
Has anyone else come across this before? The reason I am asking due to the acetic acid base causing me skin problems and want to change over to the citric based which I feel will be gentler and not cause me the problems I am having.
Using plain water is not an option!