Iknow one thing for sure and that is that I will never install laminate floors again. I hate the stuff. I know that I have a problem because I have an older dog that has puddling accidents frequently and I have to clean up right away. However, sometimes depending on how the light falls on the floor you don't always see these puddles so between that and the frequent cleaning the floors have been ruined. The installer did not mention until after the floor had been laid that I should not use water on the floors, only a spray cleaner which does not clean the floors. I even bought a Haan floor steamer, but that isn't good either because it leaves the floor wet enough for moisture to seep into the seams of the floor and leaves it dull looking. When I clean a floor I don't want to go over it 2-3 times to get all the moisture off. I have better things to do other than constantly cleaning the floor. The only thing that ever left it looking half way decent was mixing Murphys Oil Soap with warm water and even that didn't last long. Sorry folks I just had to vent on this subject.