How to interconnect two elements which are generated by profile manager

[Daniel_He]

There are two drainage pipe interconnect in 90 degree, how can I merge them together with pipe connection and surface smooth, not like connect in the picture;

Seeking help here from an Archicad beginer, thanks a lot

[Daniel_He]

Hi, following your reply, I changed intersection No. from 0 to 1, the problem was solved, thanks a lot Barry and DGSketcher

[Daniel_He]

It's solved. Thanks so much for helping got here, it's so helpful and efficient for a beginner to learn Archicad