I bought a used Knop "C" I set it up, added a second chamber, have koralith in the first, and crm in the second. I don't like my needle valve, so I ordered another. My bubble counter has a crack in it, small leak. Had to order another one. But I did get a knop C for 100$ shipped to my door, I love e-bay.
Korallin Calcium Reactor
- Thread starter JohnL
- Start date
jdieck
New member
This is not exact science no matter what chemists say although theoretical calculations can give you an approximation. Not withstanding the reactor design itself, variations in Probe calibration, Mineral composition and surface area of the media, the efficiency of the transport method and dissolution of CO2, operating pressure and temperature of the reactor, water parameters at the inlet, efficiency of the recirculation pump and flow throughout the media, organics and phosphate content as well as Iron, Magnesium and Aluminum all can affect the dissolution rate and efficiency of the reactions. This is why setting up a reactor is more trial and error art than science.
BTW, I was in another thread where a couple people said using ARM caused algae problems. Is there a thread about this anywhere? Have you heard this? I did soak my ARM in DI H20 with mutiple exchanges prior to filling my reactor as I heard this was recommended.
jdieck
New member
I really doubt it. I have tested ARMs effluent for phosphate several times and had always came with less than 0.02 ppm
What I could belive is that if you already have high Nitrates and Phosphates and somehow algae growth was either limited by available CO2 or by a higher PH then the CO2 and PH drop could have promoted algae but again I really doubt it.
jdieck
New member
Just think of how many people is using CarbiSea aragonite sand. Same stuf just smaller grains. I miself have over 400 pounds of it There would be an algae pandemic if it would promote it.<a href=showthread.php?s=&postid=8720038#post8720038 target=_blank>Originally posted</a> by SDguy
Exactly what I said! Just wasn't sure if I was right since no one replied to the thread afetr I said it
Thanks
jdieck
New member
Hi there mr. Presi.. 
You can get the whole pump from www.premiumaquatics.com or if you are lucky, Dr Foster & Smith carry parts for the Eheim and you may get the ceramic shaft.
http://www.premiumaquatics.com/Merc...OD&Product_Code=EHEIM1048&Category_Code=Eheim
http://www.drsfostersmith.com/product/NavResults.cfm?pc=1&N=2004+2013
You can get the whole pump from www.premiumaquatics.com or if you are lucky, Dr Foster & Smith carry parts for the Eheim and you may get the ceramic shaft.
http://www.premiumaquatics.com/Merc...OD&Product_Code=EHEIM1048&Category_Code=Eheim
http://www.drsfostersmith.com/product/NavResults.cfm?pc=1&N=2004+2013
thrlride
Aka lemmywinks
<a href=showthread.php?s=&postid=8756885#post8756885 target=_blank>Originally posted</a> by jdieck
Hi there mr. Presi..
You can get the whole pump from www.premiumaquatics.com or if you are lucky, Dr Foster & Smith carry parts for the Eheim and you may get the ceramic shaft.
http://www.premiumaquatics.com/Merc...OD&Product_Code=EHEIM1048&Category_Code=Eheim
http://www.drsfostersmith.com/product/NavResults.cfm?pc=1&N=2004+2013
Hey!
Thanks for the info on the ceramic shaft at drsfostersmith. Unfortunately I couldn't find one on their site, I wonder if they are out. The best I could find was for the 1046 model.
jdieck
New member
You could but you do not need to.
Being a single chamber the effluent output will be representative of the PH in the chamber so all you need to do is drip the effluent into a cup that oveflows into the sump and place the PH probe inside the cup.
If you still want to you may either instal a probe sump in line or modify the reactor top flange for an in chamber probe:
For an in chamber probe you need to drill and tap the top flange for a 1/2" compession fitting, thread in the fitting and pass the probe thru.
Compression fitting:
http://www.premiumaquatics.com/Merc...D&Product_Code=RF-PROBEH&Category_Code=cparts
Also you can build a DIY PH probe sump were the effluent line goes in trough the bottom and goes out trough one side.
See below construction drawing:
