I don't think one has to be an interpreter or expounder of Islamic law to know that one automatic dishwashing cycle cleans and sterilizes my utensils. I'd go to Sears and ask the sales rep first.
Islam is the perfect religion. Washing something 7 times (including once with sand) is not the perfect solution. Having to ask an imam (who may disagree with the mufti of another mosque) how to clean my fork after my dog licks it is not perfect either.
Come to think of it, not allowing dogs to enter my house isn't the perfect scenario either. Killing dogs (no matter their color or markings) because we think they are the devil is illogical.
I just hate it when all these imperfections undermine the perfection of the perfect religion.
Peace Seminole
Dishwasher - requires, electricity, money to buy it, technology to design it, water a lot of which is used, heating energy, and so on ... the seven times water should be viewed as seven times the capacity of water the utensil can hold and sand as an abrasive to cling to the slobber. In the deserts they save water not waste it like we do. Imperfect? Only in your eyes.
How will you wash your fork if you camping? Imperfect? Only in your eyes.
Restaurants and shops do not allow dogs either ... imperfect? only in your eyes.
Killings dogs as devils? An interpretation that you cannot stand ground with ... imperfect? only in your eyes.