I choose from the beginning to use water with my MMS. so it doesn't taste so good... it is just a few seconds an hour...
I read in a German website (that sells MMS) that even water that have Calcium in it will weaken the MMS and they suggest to use reverse osmosis water (or distiled water) for the best effect of the MMS.
I changed my water to distilled water and i can fell the difference. i didn't do a test to see if there is a real deference between the regular water that have Calcium in it and distilled water but i figured why take the chance?
After all, I'm taking MMS to heal myself not to play games, so I am not going to do something that can, potentially, reduce my chances of healing.