I'm planning how to add a new stub stack waste for a utility room.
I've got a few options to connect it to the existing waste. They are described below and in the photo, which one would be best?
1) Clay pipe 1 in the photo is currently just taking rainwater. I could change this to a stub stack and handle both rainwater & waste here.
2) Clay pipe 2 is not currently used, but I've poured some buckets of water down and it seems to be draining fine. I can't see where it goes though, it certainly doesn't connect under that inspection cover. Would it be safe to use this for waste or is possible this doesn't run to the main sewer?
3) Option 3 is to lay brand new pipe (shown as the dotted line) to connect under the inspection cover.
I've got a few options to connect it to the existing waste. They are described below and in the photo, which one would be best?
1) Clay pipe 1 in the photo is currently just taking rainwater. I could change this to a stub stack and handle both rainwater & waste here.
2) Clay pipe 2 is not currently used, but I've poured some buckets of water down and it seems to be draining fine. I can't see where it goes though, it certainly doesn't connect under that inspection cover. Would it be safe to use this for waste or is possible this doesn't run to the main sewer?
3) Option 3 is to lay brand new pipe (shown as the dotted line) to connect under the inspection cover.