Agua pasada no mueve molinos

[ROBINDESBOIS]

it means dón´t look back at the past .
English?

[Rusty]

Look here (http://www.tomisimo.org/idioms/en/it-s-no-use-crying-over-spilled-milk-4642.html#idiom-2353).

[EmpanadaRica]

Rusty, I can see 'It's no use crying over spilt milk' (which makes sense :D)

But would you say 'It's water under the bridge' would fit the bill also, or is there another expression in Spanish that would be better for it? :)

edit:
Sorry I already looked it up in the idiom dictionary :o
'Ser agua pasada (http://www.tomisimo.org/idioms/es/ser-agua-pasada-4640.html) ' I guess that would be. :p