I have a some trenches that are 6 inches X 6 inches deep, several dozen feet long. rather than purchase dirt to fill them, I was thinking of filling/packing them in with a bunch of sod I have torn out from another project, then throw some fresh seed on top If needed.
Is using the old sod as ‘back fill’ for holes like this okay, or will it decompose and sink down?
Anytime you toss loose earth with air pockets into a hole, it will sink as it compacts, unless you compact it first. Just keep adding a little dirt to it as it sinks.
