Rearranging the compost bins' contents

I am collecting piles of weeds on the plot as my compost bins are very full already. Having emptied the middle bin onto the asparagus I now need to transfer the contents of the two outside bins into it. This aerates the compost and makes the decomposition faster as it also mixes up as  dig it out and shovel it over.

As you can see from the photo I cut down through the layers before shovelling the muck over in to the bin next to it. It is hard work but worth it as the resulting compost benefits from being mixed up and aerated. To help the process I collected a barrow full of hay from the nearest horse litter bin and scattered that over the compost in the new bin. The contents of the bin pictured are very compacted and wet so I hope this hay will lighten it a little and help it finish rotting down into friable sweet compost.  Just to help it mix in I used my aerating tool. This is a spike with a pair of barbs that help pull compost up from below to mix in with the hay topping.
I am just over halfway through digging it out and doing a bit each time I go down to the plot but the piles of weeds scattered around the plot keep on growing while I struggle to get an empty bin to put them in.
​