I want to move the kitchen and bathroom away from the exterior and need to relocate the soil pipe to the middle of a Victorian terrace house. There is a manhole at the front of the house and the existing soil pipe is right at the back of the house (and rusted through). Drawing a straight line between the manhole cover and the soil pipe, I think the drain goes under some open ground about 3m from the new position for the soil pipe (also about 3m from the old soil pipe) before it goes under the rest of the house. 1. Do I dig a new manhole to join the new soil pipe into the existing drain? The ground floor will be up, so I have a chance to repair any damage to the existing drain under the house (there is a LOT of rising damp). 2. Can I bend the vent around joists and rafters above the highest drain into the soil pipe? 3. Would I need to put an inspection plate in the soil pipe between the highest drain and the lowest bend? The new kitchen sink, basin and toilet will all be with 1m of the soil pipe. The bath drain will run about 2m. 4. Given that the runs are so short, should I have separate drains from basin, bath and kitchen sink into the soil pipe? 5. Is it easier if these are on the other side to the toilet?