On a new house construction, we have rainwater coming into the basement where the sewer pipe exits the concrete wall to the septic system. The plumber said he had to jackhammer the hole that the excavator had put in to make it larger in order to get a bigger fitting in there. The PVC elbow is partially cemented into the wall. Should the elbow joint be partially hidden, as it appears to be, in the concrete wall? And does the bend in this drain line look too tight? We are wondering why it is leaking and if the plumbing has been done correctly or not.

Here are two images:
[drive.google.com]
[drive.google.com]

Thank you



Edited 5 times.

good / best practice:

fitting NOT in wall

sleeve through/in wall cemented in TIGHT

pipe through sleeve to allow for any future settling of structure

sleeve/pipe caulked or packed with oakum (not cemented solid) to prevent water intrusion


if penetration 'area' is leaking something is wrong


best of luck


(others will 'chime in' re: code required MINIMUM standard)

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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

enlarging the hole a little bit will not weaken the wall.
as for the fitting being buried inside the wall, you had better have a discussion with the plumbing inspector about that.