went all the way to 4.9 once,i added potassium bicarbonete and raised it to 6,stayed there a week i guess ,then just took a rail car to 1600ppm ,changed all the shit out started from scratch twice,the triple digits i belive is the issue i just got to meet in the middle with it,cleaned the can with baking soda scrubed it,thinking maybe since it does clean very well that if it absorbed into plastic can it would make ph higher, both times i didnt get any slime or scale,i just asked ive heard a few you guy talk about it on other threads and such.
the hottest day this year went 105 with 108 heat index,it thrived in the temps,when the weather didnt and still hasnt stablized when every thing went south,watermelon isnt really a cool cat when it comes to cold,and 70 here is frezzing to me hahahah