The building type determines the drainage pipe line set.

State-of-the-art building water pipes.

A building has a normal sewage down pipe and a drinking water supply pipe as a standard. Depending on building this can be split once again in a hot and a cold water supply pipe.

Additional pipe lines

In principle, the sewage down pipe will continue to be used  for the drainage of black or brown water. So this does not need to be  replaced when  renovating . The drinking water supply pipes are also part of the cycle and therefore do not have to be replaced : Furthermore these  provides the building with drinking water. Only an  additional pipe for the toilet flushing water supply,  with a small diameter and a grey water drainpipe (with a considerably lower diameter than the down pipe for the toilets) must be fitted into the supply shafts.

If urine separating toilets are fitted in the bathrooms, a thin urine drainpipe must be additionally installed in the supply shafts.

In multi-storeyed buildings the baths and toilets are usually connected to the supply shafts that  are located above each other. These supply shafts are planned with an overcapacity for re-fittings e.g. for additional pipe lines. So the retrofitting of a building can be easily carried out during a renovation and even under regular business due to the fact, that in modern functional buildings the supply shafts are accessible from the outside. Thus, often no construction work IN the building is necessary – the entire change of the drain and supply pipelines are carried out  in the supply shafts.

What is optimal for your building?

Besides that, however, there also are cases in which it makes sense, to separate the partial streams only partly. For example, a separate drainage of urine makes sense, while brown and grey water are drained jointly in some objects. Ask us! We advise you with pleasure and work out the optimal drainage mode for your object.