I recently had my main sewer pipe that runs underground to the main pipe replaced, and I left it open for a few days to check everything is okay, and it seems to be.
What is the best way to fill the trench back in (I got rid of the original soil dug up as it was contaminated with faeces)?
I have done a few google searches, but found nothing conclusive. Is pea gravel (10mm) good for a base layer to just cover the pipe? After that should I use soil/ sand? Do I have to press it all down?