Do I need to add salt to my Smeg dishwasher if all-in-one tablets can be used?
Question: Do I need to add salt to my Smeg dishwasher if all-in-one tablets can be used?
You only need to add salt if if the water hardness level is above 38°F (French degrees), as the resin-based water softener needs salt to maintain its efficiency. If you have one, we also recommend checking and cleaning the central softener for the household water supply.