Suzanne L Appleton , WI May 20, 2017 Replacment of filters We have a Bosch dishwasher and the round filter and the flat screen were all blocked up by hard water over the years that we replaced them and then I also bought the dishwasher cleaner and it is so nice to have that done. it smelled before and now it does not! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes