people have told me a few times to filter my pcv system with a drip can, i did that and it works great, im trying to remove as many contaminates from my intake air. people on another site, and a friend who helped me do an engine swap said to remove the hose that goes from the evap canister to intake manifold then just let the evap canister empty into the atmosphere and plug the hoes nipple on the manifold. now is there a reason why, and is this safe?