I think the filter was plugged. I thought that they’re there to keep the oil smell from the hoistway and the tanks are bolted and gasketed so water can’t enter the tank (just my thoughts). I think the tank size is supposed to be adequate for the amount of air needed, but it seems like even some conventional machine room tanks seem to oil can from not enough air. I just wanted to add a problem that I had seen to the original post about bouncing in the up direction.
