How old was the Phytomycin?
I just purchased it from a local cleaning supply house that had to order it in special...
Hate to admit my STUPIDITY, but...
I can assume it is pretty new by the reaction I got by NOT cleaning out the itsy bitsy bit of Cutrine Plus that was left in my hand sprayer...Needless to say I never had to pump the handle on the sprayer for the hole 2 gallons...Took the tip off of the spray wand for fear it was going to blow up...