any that deteriorated on me was due to light and it turned a dark grey/black
im still baffled as to the blue , it make no sense to me whatsoever
peace
edit,,,,
did some reading on that water brand , found a lot of negative comments , but who knows , its the net , could be competitors slandering them
do you have a tds/ppm meter to test it before making the c.s. ? , last time i checked mine (used the same water the past few years) it was always 0 - 3 ppm , 9 times out of 10 it was 0 and id just use the 3 ppm stuff to drink as normal water and buy a new jug