Problem with creating splits

If you have some problem with 'trim with surfs', maybe try 'trim with lines' ?

Thank you for for your reply. I tried doing that but I was unable to get the line to split the surface along the contour along which the two pipes intersect. I can't figure out what I have done wrong. 

If you could share your model, I can have a look at

Thank you for your offer to help. I have sent a link to the file through a private message.

Thank you so much!

@richard26: check your PM box.

@richard26: check your PM box.

Thank you !!!

The same problem is reoccurring elsewhere in the model. Could you please explain how you did it ? 

When you can't split surface by another surface, try split them by line. Where're the lines ? Just create them by 'intersection' between surfaces.

After that, you need also merge edges.

When you can't split surface by another surface, try split them by line. Where're the lines ? Just create them by 'intersection' between surfaces.

After that, you need also merge edges.

I figured out how to do it.

Thank you so much !   /emoticons/default_smile.png' alt=':)' srcset='/emoticons/smile@2x.png 2x' width='20' height='20'>