Cypress gunk in a Nyle

[Brad_S.]

I was going to call Nyle about this but since Don reads this forum and others may have had a similar problem, I thought I try here instead.
Ran 3 loads of cypress through a Nyle 200 and now the condensation fins are coated with an orange/rust colored gunk. My guess is it needs to be sprayed with a pitch remover and then pressure rinsed? Is there a better, less messy answer?