Re: Will the waste pipe still work going down then up again?
Gravity is an issue but more importantly you must bear in mind that you CANNOT extend the flexible drain hose on most dishwashers. That a waste pipe should be close by so that the hose can hook into the stand pipe. OR that the dishwasher stands alongside an adjacent drain coupling ( i.e. Sharing the sink waste pipe with a linked coupling)
A long length of extension drain hose going up and down around the kitchen is NOT an option.