replace that bish. the materials the camelbacks and platypus bottles (HDPE nalgene bottles too) use absorb flavors. be it drink mix, coffee, gotorade, juice, mold, or bleach. that's why if you go backpacking in bear country you're supposed to put any bottle that has ever had juice in it outside or up in the bear bag. those dudes can smell 3 month old juice in the bottle. your system will never be the same. just replace it. the bleach can seep in and over the long term cause brittleness and cracking. if you replace it now you don't have to worry about the fatigue of age and possible leaks from that.