@tinaesims MAC/MAI is not like radon which home radon mit systems for air and water can eliminate. Certain types of whole house water systems have been discussed here, but short of living in a bubble, MAC will be everywhere. Not using ice water/cubes from the fridge, boiling water first, avoiding a hot tub, cleaning your shower head with vinegar or switching to baths, and/or wearing a mask while doing house or yard work are at home measures you can employ to “protect” yourself. MAC is an opportunist pathogen. Twelve people lived in my home ( ten children (what were we thinking) , my husband and myself.) I am the only MAC person! irene5

I live in a high rise in Chicago. Years ago , when I read about flesh eating bacteria destroying a teenager's limbs when she jumped into a warm water spring in , I think, Georgia, I looked up our water filtration plant and what it filters our of the water. I was using tap water in a neti pot at the time. Because our water is taken from far out in cold water Lake Michigan, I had hoped that it would not have many bacteria. Alas, flesh eating bacteria COULD survive in the cold waters and the filters would not remove them. No more tap water in a neti pot for me!

I assume that there is MAC and other bacteria in my tap water and I don't feel a need to prove that it is there. For many years, I have showered at my gym and there isn't much I can do about the water there, which is the same as the water that comes into my condo. I probably will get a water proof mask to wear in the shower there when they reopen and the masks are available again.. Since being forced to shower at home due to the virus closing gyms, I have soaked my shower head in the stronger, cleaning vinegar for several hours a couple of times. I'm not worried about most likely drinking MAC in my tap water. Stomach acid will kill almost everything.

I don't believe in boiling drinking water, so I don't know what else to do and I refuse to worry about it. Irene's report about so many using the same water but only one person, her, getting MAC is so important. It's not what's in the water; it's the state of our lungs.