> That's very likely. Since the incident of e-coli contamined water(posted 8529 days ago)OK, that's something to investigate. Note that for the test it's important to use distilled water for _everything_ including the wash.
I realise it's probably ridiculously impractical to continually use distilled water if you find that's the cause of the problem; I have no idea what to do about that other than ask water-quality specialists, preferably people who aren't trying to sell you their filtration system.
Can you think of anything else you've changed. Different HCA perhaps?