client want us design the closed drain piping above ground also the collecting closed drain tank is above ground.
I have few question as i have not done any above ground closed drain system
1.Do we need to run the header pipe on rack
2. All the drain pipes to be routed above ground to pipe rack
Pipe are going from above ground to underground it is having slope if i maintain a single elevation it is clashing with a trench
so my question is it possible to change elevation in U/G pipes. Some body said we cannot change elevation in U/G pipes