Step 1 : Check the FAQ at the top of the page (or menu to the right on mobile)     Search "Catch can"  it just might have been covered on here once or twice before    and Have a read of this   catch can setup - dual cans no filters   that should answer some questions?   If not continue discussion here  because yeah loads of the pictures are gone or will not load   and yeah my help was not really helpful at all after all that....