With a regular chemical floor degreaser, the floor is supposed to be agitated aggressively with a deck broom every night in order to keep the grout clean. Easy Mop reduces the intensity and frequency of the deck brushing. Customers have stated that EASY MOP is superior to chemical degreasers when they witnessed the flaking of the grout. This product will take a minimum of two weeks to remove the historic build-up of fats, oils, and grease which has accumulated on your floor. Your floor will get worse before it starts to get better as historic grease rises and flakes off.