Rescue HSR-100 Hardwater & Calcium Remover

This stuff worked but it wasn't a slam dunk like it was advertised to be. I had a very heavy build up of deposits on the glass. This softened it up so that it because a sticky goo on the glass which I could then scrape off. I then cleaned the windows with cleaner and polished them with an automotive polisher. It did make the job easier by eating into the stains though so yes, money well spent.

I bought this item for our production area where we have water consistently splashing a light curtain and where having problems with hard water build up making it malfunction.They said this product works like a dream to get it off. My safety coordinator loves that theirs not much she has to worry about when it comes to it being used. Production said at first they had to use a good bit but letting it soke for a few minutes made it much better.

Removed the scum on the windows very easily. Not very much product in the bottle!

Absolutely worthless product. Never saw any foaming, cleaning or any change to the hard water and calcium deposits on my tile.