Calcium reactor 2nd chamber?

[Singlefin]

Anyone have experience with a 2nd chamber on their calcium reactor. My 120g is pretty much all SPS. I get good growth and decent coloring. My PH is always low. ~7.7. I've read a 2nd chamber helps to raise PH. Would this help in my SPS growth and coloring? Wondering if it's worth the $250 to add one on. Thanks.

 

[jgraz]

I have a MTC ProCal which has the second chamber. During the times of the year that my home is closed up my ph hovers around 7.8 with no issues. Open some windows for a day and it jumps to 8 then back down when it's closed up again. IMO I have seen no
Evidence whatsoever that the second chamber buffs ph back up.
I also know several others who have the same issues with a second chamber

 

[Singlefin]

[emoji106]