Question 90 degree sewer at campground

[Joe Hogan]

We are here at Kathryn Abbey Park in Jacksonville Florida. A city park, heavily wooded. Tight for a big rig but doable.
The sewer attachment is something we have not experienced before, a 90’ pvc pipe near the ground.
Somewhat of an issue using a SaniCon. A standard 90’ sewer connection for a standard hose would be no issue.

 

[Rich W.]

Is it glued or can you pop it off? Maybe it’s just there to keep rain water out.

 

[Joe Hogan]

These are at every site and appear to be glued. Most people are using a std 90 ‘ hose fitting. We struggled with the SaniCon.

 

[Jim]

But why? Unless it's to keep sand or small rocks from falling in and clogging the system?