How to Clean Carpets - natural solutions that work! Clear the room(s) of extra furniture and anything on the floor Fill your tank with HOT water. Add your cleaning solution: I like Biokleen’s Carpet Cleaning solution, Clean Mama’s Oxygen Whitener (1 scoop to the hot water to brighten carpets), OR a mixture of 50:50 hot water to white vinegar. Follow the directions for your carpet cleaner - go slowly, moving from the back of the room to the door taking care to extract the solution and dry the car