What's in your Bladders or Tanks?

[N601RX]

We had been smelling fuel lately, especially after landing or when the tanks were full.  It has bladders that are 12 years old.  I had talked with O&N and they gave me some suggestions where to look for  the leaks.  I was happy to see that the badders were still soft and pliable with no rot.  The leaks turned out to be around the cork gaskets that cover the inspection plates in the top of the bladders.  The cork had squeezed out over time. There was also a leak around the fuel sender.  There was also a lot of trash in the bottom of the tanks that needed cleaning out.  Some of it could have easily stopped up the fuel pickup.  Has anyone else found trash in the bottom of their tanks?