Pipe configuration soil waste pipe

[simlock]

Hi, can anybody tell me if this would be ok to use as a pipe configuration? obviously the black fitting would be replaced by underground pipework, also the 3 socket t piece wouldn't be used, and it's a bit wonky, so not sure what fitting to use on that part, any advice would be good thanks

 

[oz-plumber]

Is that an overflow gully - the orange thing with the grate.
Are they not meant to be trapped before entering the main sewer?
Do they also not need a fixture running into them to replenish the trap?

 

[snowhead]

OZ,
The trap is built in inside, usually removable for rodding /jetting through.

Guessing there was a gulley there, now removed and the junction added for a stack.
Stack would need a rodding / jetting access just above ground level.

 

[oz-plumber]

Snowhead,

What primes the trap?

 

[snowhead]

Presumably the sink / (bath )waste that hasn't been fitted into it yet.