I thought I had seen it all. More large unit floor tiles being improperly installed with no positive water flow action into the drain. The worst one I have seen where the installer made the drain the highest point of the wet floor. I was called by nurses of another hospital about this and kindly apologized of having them to train the water into the drain with a broom.
I got in touch with a good tile company who thought out of the box and shared a photo of a solution once you click the picture for the New Drain Detail