The formulations are different for all the Ahh-Some products. However, that being said, it is ok to use a "slightly larger amount" of out hot tub plumbing/jet cleaner in your dishwasher. So, use about 5/8's or 3/4 of a level teaspoon instead of the typical 1/2 teaspoon when using the correct Ahh-Some product. More detergents are added to our washing machine/dishwasher formulations. Since you are up in Quebec the availability of the specific product for the dishwasher may not be readily available. So, use the other and use a little extra. It will work. Be sure to clean the dishwasher filter at the bottom. Your dishwasher should have one. Most people have no idea there is one. Read your manual or look up your model on the internet To see where it is located and how to remove and clean it.