arvin
NJRC Member
I spent all day today trying to setup a Korallin Kalk Reactor. It was one painful affair 
Anyway, one of the hurdles I faced is that there was no bubbles in the bubble chamber. Upon closely investigating I found out that the brass valve appears to be closed. That is, there is no hole in the brass fitting. The CO2 has no where to go. See the image below for reference:
I removed the brass fitting and the green tube on top of it and then connected the CO2 directly to the top of the bubble chamber. Now I am able to see the bubbles in the bubble chamber. My question here is:
a) The brass fitting - why is it closed? Is this by design?
b) Should I try to replace the brass fitting or can I continue to feed CO2 from top without using the green tube and brass fitting?
I also have another related question. I was testing the KH before setting up the Ca Reactor. Based on the chart, it comes to about 8.6. The Ca reactor instructions suggest that I should aim for 25 to 30 degrees KH. How do I convert the 8.6 KH to something in degrees?
Anyway, one of the hurdles I faced is that there was no bubbles in the bubble chamber. Upon closely investigating I found out that the brass valve appears to be closed. That is, there is no hole in the brass fitting. The CO2 has no where to go. See the image below for reference:
I removed the brass fitting and the green tube on top of it and then connected the CO2 directly to the top of the bubble chamber. Now I am able to see the bubbles in the bubble chamber. My question here is:
a) The brass fitting - why is it closed? Is this by design?
b) Should I try to replace the brass fitting or can I continue to feed CO2 from top without using the green tube and brass fitting?
I also have another related question. I was testing the KH before setting up the Ca Reactor. Based on the chart, it comes to about 8.6. The Ca reactor instructions suggest that I should aim for 25 to 30 degrees KH. How do I convert the 8.6 KH to something in degrees?