Parameters sliding with Cal Reactor

[johnnstacy]

I was told that when I started using a calcium reactor, to keep an eye on my alkalinity. I have been using it for about 2 weeks now and calcium is stable at 420. Alkalinity is stable at 9.3 but my ph has continued to drop slowly from an original 8.45 to a high of about 8.1 now. What should I be using to offset the lower ph?

 

[synthesis]

Get a PH controller to control the C02 mixing. C02 is what is lowering your PH.

 

[johnnstacy]

I know what is lowering the ph and I have a controller. I set it to the effluent of the reactor which I maintain at 6.6. Just wanting to know how to maintain ph for the long term.

 

[cmc5dc]

Open up a window or get yourself a Kalkwasser reactor but what is wrong with a ph=8.1?

 

[johnnstacy]

Before I started using the reactor, my ph was consistenly about 8.4 to 8.5. My tank and sump are in a 60x60 room so they get plenty of air.....

I am just comparing the 8.1 to the 8.4. That is a pretty big drop and I don't know that it is done yet. I have been recording numbers over the past couple of weeks and watched the gradual decline.

 

[Slickdonkey]

I have the same problem, but it started even before I added the Ca reactor. I started kalk topoff, that brought the pH from 7.8-8.0 daily to about 8.0-8.2.