I have a Manington Cilarum kitchen floor, tried every thing, and then called the store that installed it. I have brown spots comming thru. This house is well over 100 yrs old, but there is no reason spots should come thru the flooring. They came out to look at it and said to use ZIP STRIP. Put it on for 10 Min. and then wipe off and wash with soap water!!! NEVER!!! I like this floor & and don`t want a new one at my age. I have tried most of your suggestions, then steamed it with just water, still dirty. Then hubby had friends over for a card game... they were old too, so he bought some kind of ice melter. These nice old guys, let their shoes drip off under my table, and now I have a new problem. No matter what I use, the floor looks like we walk with greasy shoes on. I think I have tried every thing!!!!!