I am about to get a replacement washing machine and noticed in one manual that it states the old filling hose should never be reused when the machine is installed. I can see that it /might/ be better to replace it, (or at least replace the rubber washer where it screws onto the washing machine inlet) but if it is not leaking why is it essential to replace it?
I must say that looking through specs and reviews of washing machines is quite possibly the most mind-numbing and madness-inducing activity I've experienced recently. Too much information!