Hi, I had contact with the UWB again.
Regarding the infiltration of traffic areas. Since I included this in the calculation, but I made a mistake.
I asked again whether I really have to discharge them into the soakaway.
Answer:
Traffic areas must be drained somewhere because they have runoff during heavy rain events. However, whether this runoff is discharged into the same infiltration system as the roof drainage or into a separate infiltration system (e.g. existing green area) is up to you.
It must be ensured that the stormwater does not leave your property.
So, point 1, I will not connect it to the soakaway.
Discharge it into a green area?
I will probably have a bit of lawn and plant beds in front of the house, but how should I discharge it there?
Catch it and pump it back up?
Or simply install a drain/catch channel at the end/beginning of the property and direct it directly into the ground underneath without further piping.