Alternate Uses For Holmes Humidifier Water Treatment

This product is designed to prevent mineral build-up in the humidifier.
So it might be useful for removing mineral deposits from shower heads, around sink and lavatory faucets, etc.
I'm not sure how strong it it - it might not work, but what have you got to lose?

I don't know but why not donate it to Goodwill or a similar charity so someone who can use it, will!