When you plug up your vro. Is gas supposed to leak to the oil side? I remember reading something around here in a search I did....that the diaphram was supposed to prevent That? Gas from going into the oil area? REason I'm asking is...I took off the plug cause it was loose. I noticed it became loose cause the gas had swelled it up and there was around the nossel and in the plug. Another reason why I'm asking is....if it is leaking...could the diaphram be ruptured or have a hole in it?? Thus showing indications of a vro/pump that might not be working right??