Was cleaning up the basement in preparation for carpet installation and noticed a small leak coming from the oil line where it is connected to pump. There is no clamp on the line where its attached to the copper fitting and the pump housing had about 10mL's of oil in it. Will this be an easy part of annual maintenance? Can i close the oil line at the tank until someone comes and takes care of it? I've placed a disposable paint tray liner underneath to catch any more leaks. Not sure whats causing it, furnace hasn't been on since end of February/early March. Thanks