Herbie overflow into trigger cr44

[Blue44]

I'm in the middle of setting up a new tank and I'm going with a herbie drain. I'm curious about the siphon though. The main drain is 1.5 inch, the bulk head is 1 inch. I was going to run 1 inch pvc over to the sump inlet. The sump is a trigger cr44 and the inlet to that is 1.5 inch. I was wondering if going 1 inch pvc to the sump and then 1.5 inch going into the sump will mess up the full siphon and cause it to gurgle or anything?

 

[SPR1968]

I can’t answer the specific question, but I can bump the thread to see if we can get you some help

 

[Snoopy 67]

I have a 250 with dual Herbie drains running 1" piping.
A dc 12000 pump @ full flow does not cause any problems. I see no problems using a reducing bushing @ the sump. https://hy-techroofdrains.com/water-flow-through-a-pipe/