How to connect drainage channel to drain?

[SpecialK]

Hi,
I have removed an old concrete drainage channel that must have been leaking as the earth below it and under slab has washed away. It was connected to the top of the drainage hopper as per my arrow in the picture.

I'm installing ACO style drainage channel but this will sit much deeper. What would be the best way to connect this to the hopper? Its a square style hopper - Not sure how far down the flat sides go yet. Can I drill in or will I need to replace this with plastic and suitable connectors?

Thanks in advance..

 

[Ian H]

I’d swap for a plastic gully, there are some such as the Osma 4D900 that give the option to connect inlets on the back and sides.

 

[SpecialK]

Do you think it will have a joint before the U bend I could attach plastic too? Or are the clay ones inclusive of trap and u-bend?

 

[Ian H]

The trap is the u-bend.

You can connect before it in the plastic one or could possibly cut the clay on the one you have there and bodge it in, depending how low it is. You don’t want to cut anything below the water level.

 

[SpecialK]

I drilled the gully in the end. Hopefully this works ok!

 

[Ian H]

That’s very neatly done

 

[SpecialK]

That’s very neatly done

Thanks, I used a 70mm glass cutter with water. The pipe is 68mm so I wrapped some ptfe around the pipe and shoved it in, then concreted both ends.
Rubble under the pipe then soil! Fingers crossed it works OK. Need to do the other side now where the bathroom sink waste is running on top of the gully.