Bottle gulley and aco drains install

[slimsoul]

Hi,
thought I’d ask here before jumping two feet in again!

What would be my next steps here?

The plan is to route the p-trap connection behind the rest bend opening to have the ACOs connected to it running along the house wall.

This area will be covered over by decking later.

Original thought was concrete around the opening of the rest bend and ACOs but not sure how to achieve this with pea gravel and type 1 in this area and also two levels (lower where fittings are, higher where ACOs will run)

 

[Hugh Jaleak]

I'd put a bit of concrete where needed to hold everything in place, i.e. the Rest bend and P Trap, (you only need to go about half way up so they cant move), then peagravel the rest. Seal the gap around where the pipe enters the chamber with some strong mortar.