Between 60 and 71˚C for washing, and 82 or higher for at least ten seconds to sanitize. You can also sanitize at low temp if you use chemicals (e.g. 100ppm chlorine).
Dishwasher should only connect to the hot water line. Here is no additional heater for the water so tt should be the same temperature of the water boiler of the house.
For washing dishes and pans.
Yes , you should.
when you wash your dishes, with hot water and soap, and rinse them off in hot water,
Assuming you're running the dishwasher fully packed, then handwashing the same number of dishes would consume more water. Yet if you are running the dishwasher with not to much silverware it would save water to just hand wash them.
surprise them while visiting by washing their dishes or loading the dishwasher
You have a problem with the pump, or a blockage in the drain.
Hand washing clothing while on a trip.
Yes. Washing "by hand" rather than placing in a dishwasher is preferable.
Using a dishwasher is faster and sometimes more cleaner than washing by hand. Hand washing saves money on energy because of drying, but it is time consuming. I prefer to use a dishwasher when I have a lot of dishes to do, but handwash if there are only a couple of dishes.
The banging sound that is made when a dishwasher is in the process of washing the dishes is the sound of the powerful streams of water reaching the dishes. This means that the water is helping to clean and sanitize the dishes, so it is a good sound to hear.
shower toilet washing hands dishwasher washing machine washing dishes (in sink) washing dog watering garden drinking cooking swimming pool bath