Let's list some places that need cleaning out. They can be openly discussed if there is any doubt about removing stuff. Hopefully caving groups will then take up the challenge. Here is a couple to get started.
Boxhead Pot - Tantrum Aven. Many years ago there was a suspended system collecting water from the aven and using it to wash mud from a dig. It is long abandoned and all the stuff is in a disgusting heap on the floor.
Sunset Pot - Shake Cavern. There used to be the remains of an abandoned camp in this chamber. I'll bet it's still there.
Boxhead Pot - Tantrum Aven. Many years ago there was a suspended system collecting water from the aven and using it to wash mud from a dig. It is long abandoned and all the stuff is in a disgusting heap on the floor.
Sunset Pot - Shake Cavern. There used to be the remains of an abandoned camp in this chamber. I'll bet it's still there.