Hi, Looking for a bit of advice on the best way to do things with a new soil pipe, apologies if its not complexity clear what im trying to do but i'll do my best to explain. The current layout is this: I need to move the soil pipe to the side of the house for the new bathroom and for the new downstairs toilet. However to save cost I would like to reuse the existing sewer pipe. The issue is how best to connect the vertical soil pipe to the horizontal underground pipe, as i see it there are two options: Or: My concern is clogging where the vertical pipe meets the horizontal pipe from the downstairs toilet. What would people recommend?