arch issue sound stupid but meh

[jakeufton]

i have recently bought a nova that has the arches d/i/y rolled and they wernt rolled flat so all the crap has settled inside and in one place is starting to rot through but its a small gap so i can get anything down to get the salt and water etc out ! i dont want to bend the metal back due to the poor mallebility as the arch will weaken and poss snap off! sound silly but help needed thanks

[bazil]

pressure washer then an airline?

or cut them out and stick new ones on,although that is a preety extreme way to clean arches