how long for dirt to settle in sewer pipe trench
A trench (70 feet long by about 4 feet wide) was dug for my sewer line replacement (from the house to the street). It varied in depth from 3 to 10 feet. When they backfilled the dirt, they did not compact it. I now have from 1 to 3 feet of dirt above my grass level that will need to settle over time.
Do most plumbers compact the soil or just push the dirt back in the hole?
Does anyone have any experience on how long it may take for this dirt to settle?