Moving utility room soil pipe (with photo)

[kriggi]

We're redoing our utility room to have a run across the wall of a washing machine on the left, tumble dryer in the middle and cupboard with sink above on the right. Unfortunately the existing soil pipe comes out of the floor exactly where we want to position the tumble dryer.

The photo below shows the existing soil pipe, position of the tumble dryer and proposed new position of the soil pipe which is 40cm to the right of its current position.

The logical thing to do would be to position the sink in the middle but due to other restraints this isn't possible so we need to move the soil pipe.

How would people propose this is done?

I'm assuming we'll need to dig up the floor, fit a 90 degree bend on the existing soil pipe, run a horizontal 110mm soil pipe with another 90 degree bend upwards to the new position and concrete this all in. Is this right, or are there easier options?

Many thanks in advance.

Chris.

[Arthur Jackson]

Is it just the sink waste (and dishwasher etc)? If so, I'd cut it low enough to lose a 50mm waste in the floor with appropriate fall and put a 90degree elbow on each end into a 110x50 concentric reducer.

[kriggi]

Thanks for your reply.

I was thinking of doing just that (sinking the whole lot into the floor and covering with concrete) but I wasn't sure if this was allowed or the proper way to do it?

[dickymint]

Cut it flush, cap it off, dig a trench and T into it.