A bloke I know has his Provent 200 venting to air.

This guy has seen how much gunk still comes out of the CC even with regular cleaning of the filter and draining. The other day he came out and noticed a small pool of oil on the shed floor which had come from the outlet (not the drain plug) of the CC.

He's thinking of fitting a 2nd CC, maybe a Provent 100 or copy and plumbing the output of that back into the intake as it should be.

Would there be any issues with putting a 2nd CC in line that anyone can think of??