YSB-8 siphon break and exhaust

[Annapolis E-27]

I need some help. My YSB-8 runs well except for a small amout of exhaust steam but I am confused as to why I seem to get much more water flow out of the siphon break into the scupper than acutal output of cooling water through the waterlock and out the exhaust. I have checked all the hoses and mixing elbow for blockages and can't find any. Anyone have any ideas as to why this is happening?

 

[Emerald]

Can you tell if the flow rate seems proportional e.g. as you bring RPM up, it increases at what seems to be a balanced amount both from the siphon break and the exhaust, or does it kick up the flow a lot on one versus the other? What's the sipon break look like for design? Is it something like what Vetus sells or more basic, like a tube with a tap?