Hey Brent it's lukey's brother dean
You can try washing out the header tank with some very coarse cleaning agent. You could try bleach or something like that and just leave it in there for a while. Make sure you flush it out though, i have done this before with a few at work and they came out pretty good. A new one is only going to go the same colour again so it's worth a try.
Use bleach first and yeh what ever else you've got. Catch ya later and take it easy. - deano.
QLD REP 4 E Series Club
Proud TQE Operator