Materials for back filling water mains trench?

[DripsnDropsBognor]

Hi Boys and Girls,

I am splitting currently supply inside into 4 and upgrading old 1/2 galvanized supply from the street into building without breaking pavement into waterboard stopcock.
I am using a moling company to bore pipe in through a trench I have dug out. I have agreed to make good hole as the driveway will be redone once all building works are completed.
I am sure I did it in college but I can't remember for the life on me what I need to put down into the trench once connection is done. Is it the same as drainage? 10mm pea shingle then no more than 40mm shingle? Need to get an order in before Tuesday. Any help would be appreciated
Cheers

Adi

 

[oz-plumber]

Just cover 50mm to 100mm over the pipe with sand and fill with what you have.
Just as long as there is nothing sharp to puncture the pipe in the future.

 

[Scott_D]

Do t forget tracer wire and ID tape

 

[DripsnDropsBognor]

Do t forget tracer wire and ID tape

Big utility company hooking up so if it's necessary they should do it. I think they are laying a service duct then threading pipe in through that.