A replacement always does the trick. Could have pulled it apart to see if it needed a cleaning. Not much in there to wear out unless the diaphram got a hole in it.

I had to run a rod through the little rubber 'one way' valve once to open it up. I think at the time it was too close to the muffler in the return line and may have been affected by the heat.

Wind is not an excuse! The only thing to get you outa this one is showing up drunk or with thumb casts. Joe