Dihydro monoxide in my tank!!!!


I am kind of freaking out here...I know that this stuff is going to end up in our tanks--even r/o can't get it all, but I am getting concerned about its long term effects. In its pure form, it will kill everything in my system. It even has been known to cause tissue damage to people in its solid form. What should I do? Is there a good way to test its levels and has anyone ever gotten rid of this junk?