What is being newly built? The pool or the house? The best solution is simply to connect the pool technology to the sewer using KG or HT pipes. Either lay the existing sewer connection at the basement exit during the new construction or just dig around the house. In a new building, the outdoor area is affected anyway. This way, the filter can flush directly into the sewer. With a Besgo rod valve, this can also be automatic. A submersible pump is not necessary at all if the pool has floor drains. But you could also make a branch with a ball valve and hose connection between the waste outlet and the sewer. This way, you could also connect an additional submersible pump. However, a direct connection of the filter technology to the sewer should definitely be made.
