Is your Ca reactor not producing enough

[Jaws]

I was hoping I could revive this thread and check on your progress. I've got a 180G tank stocked fairly heavily with sps. I've got a dual stage Ca reactor and would like to maintain calcium levels of around 400 and Alk around 10. I'm still trying to figure out how much flow to allow, how many bubbles per minute and what pH level should be coming out of the second chamber. Any suggestions?