I have a Numatx squeezer. Has worked really well and I enjoy the tool. However, started having problems with the foot pedal last night and now it is not working at all. It's the valve in the foot pedal. I have taken it apart, cleaned, greased and reassembled. Did not see anything foreign, still does not work. It is constantly venting air in the released position. Anyone had similiar problems? I have a call into the manufacturer, but they are closed.