This is a waste of time on the part of the designers. It is not impossible to make changes now, but it is somewhat difficult. It mainly depends on the attitude of the gas management department and whether it is because of a problem with one household. Make changes to pipes that have already passed the acceptance test, especially for homes that are already ventilated. The current approach is to actively negotiate with shop owners and use them to complain and put pressure on the gas department. The basis is the "Urban Gas Design Code" GB 50028-2006. According to the code, we cannot say that there is something wrong with the design. We can only say that the design is unreasonable and inconvenient to use.
You can explain your views from the following aspects:
1. It is inconvenient to decorate the store.
2. If possible, horizontal trunk pipes should be arranged on the exterior wall. Try to arrange them on the exterior wall to reduce the length of indoor introduction pipes and reduce safety hazards, because the more pipes and joints, the greater the safety hazards. More, this is an objective fact, no matter from which aspect it is the last word. It is recommended to consult the natural gas management company or the Municipal Planning Bureau for processing.