KG pipes for rainwater, shortage?

Hello everyone,

yesterday the civil engineer was working at my place.... I noticed the following:

see attachment.

Question: can the transition to the zinc gutter stay like this?

I will remove the sand .... it will be sealed behind it.

Deciding is about how high the subsequent site grading will be. In other words, how high will it be filled?

I heard something about 40cm .... I need to check again otherwise.

Usually there is still a galvanized collar on the gutter. That is missing in your case. Then, after paving, the KG pipe can be cut to the appropriate height and the collar slid down.

Most of the time there is still a galvanized collar on the gutter. Yours is missing. Then, after paving, the KG pipe can be cut to the appropriate height and the collar pushed down.

Thanks to you! Can you please send a photo of it?

Google standpipe cap.