I bet you can back fill with pool sand then top with regular dirt. The sand will flow and fill voids and as the soil continues to compact the sand will continue to back fill. After time the sand will silt up and lock in place if there is water flow through it. Repeat as or if needed. Mud jacking is more for lifting slabs and repositioning walls.
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http://vimeo.com/29896988
“Those that can make you believe in absurdities can make you commit atrocities.” Voltaire.
"There is grandeur in this view of life...." Darwin.
The mountains are calling and I must go.
“The earth has music for those who listen”
Shakespeare.
You Matter.
(Until you multiply yourself times the speed of light squared. Then you Energy)
“We’ve got lots of theories, we just don’t have the evidence’.
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