[matt-attack]

I never understood the requirement for having to preheat your pipes. The dishwasher has access to a hotline, and a drain. Why wouldn’t it just run the hot water for 60 seconds to ensure it has maximum heat. This would just be a software feature, and cost nothing on their part.

It seems so arcane for the operator to have to do this before running a cycle

[Telaneo]

There are regulations on water usage for dishwashers. That purge would eat into its water usage.

Yes, purging the cold water manually does exactly the same thing. We live in a flawed world.