Toilet drain, should I change these 45s to 90s?

[ShelzMike]

I have already designed my complete DWV renovation to make it code compliant and add in some proper venting, etc. That thread along with the design can be found here: https://terrylove.com/forums/index....ware-of-in-this-existing-configuration.85137/

I did have one question though, while most have checked off this design is good, I was a little concerned with the 2 45s coming from the toilet. Is this OK, or should I change to 2 90s instead? Would the 2 45s cause a siphon because of too fast of flow?

I really have no other options due to the way the toilet is positioned between the joists. Thanks!

 

[Terry]

Keep the 45's
The toilet bowl is supposed to siphon.

 

[Sponsor]

 

[ShelzMike]

Well, color me educated. I feel like I should have known that but didn't. I appreciate it! Lucky this is the case bc 90s would have been hard to fit in the space anyway.