Does your injection sting? That's not normal. A common sign of low quality BAC water is a pH that is too acidic (below 4.5). This doesn't just cause painit can actively degrade OPINION Epoxytiglianes potentiate the activity of colistin against resistant Escherichia coli via modification of the bacterial cell mem Dual bio degradative pathways of di 2 ethylhexyl phthalate by a novel bacterium Burkholderia sp. SP4 World Journal of Microbiology and Biotechnology Springer Nature Link