I found something that kills it. Ionazation. I was ask to test an ionator ( chemical free cleaning for house ) from work and it kills it. Tape does not move. It took a few seconds some I sprayed twice. Just this week. Works on laundry. Kills, not just get rid of some then grows back from "roots?"but gone gone until I reinfect it of course. The water machines are expensive. The water machines I briefly looked at seem to akalize as well. chemicals involved yuk! Will post if I have more info.