If the container that you have mixed the two products in is not air tight this will happen . It is the chemical reaction that takes place, it will absorb ANY little amount of moister it can. I had a 2.5 gal pail of the two chem ( not from Eli though) that totally turned to mush & liquid. It is suggested that you only mix the two chem at the time of use for the longevity of the chems. Hope that made sence, running on 3 hrs sleep in 48 hrs, Damn INSOMNIA.
