If dishwashers take hot water directly into the machine the heat actually bakes some food stuffs like egg yolk onto the plates and makes it impossible to remove. This is why a dishwasher rinses everything in cold water, heats it a little and rinses in warm then finally heats it fully to wash properly and clean/steralise all contents.
Last year 64% of the questions asked in our forum were answered within our DIY project pages at www.diydoctor.org.uk/projects.htm The project pages are now separated alphabetically and your answers are accompanied by diagrams and the ability to see, and buy, the tools and/or required to complete your project. Use our search box to look for your answer and save a great deal of time and money!