puntific Posted January 15, 2010 Share Posted January 15, 2010 What's the best method for pumping water into the Knop C? I just got one used and I need to get water from my tank and into the darn thing though an air line and then back into my sump. Seems like I might feed it directly from my overflow water instead of using a pump. Would that work? Thanks, puntific Quote Link to comment Share on other sites More sharing options...
stylaster Posted January 15, 2010 Share Posted January 15, 2010 actually i feed mine using the included circulation pump, works just fine. Just take the line at the bottom of the reactor chamber stick that in your sump or tank someplace so it won't get clogged add water to the reactor, all the way full and start the ehiem pump, it should start a suction Quote Link to comment Share on other sites More sharing options...
Ryan Posted January 15, 2010 Share Posted January 15, 2010 Or you can tee into your return line similar to what I did when I used a calcium reactor... Look at the ball valve in the upper right hand corner. I drilled/tapped a hole for 1/4" pipe tread, then screwed a speed fitting into it. Worked like a charm. Quote Link to comment Share on other sites More sharing options...
reef165 Posted January 15, 2010 Share Posted January 15, 2010 I've always used the reactor pump to pull in the water. Ryan, who built your reactor? Do ya have any pic's of it before going into the sump? Quote Link to comment Share on other sites More sharing options...
puntific Posted January 15, 2010 Author Share Posted January 15, 2010 Well, my reactor has two inlets at the top that have hoses into the middle of the reactor. Then there is also a third inlet that is just top center. I was assuming that this third inlet is actually the outlet. Now if I attach CO2 to one of the others and water from my sump into the last, will the movement of water in the tank cause a negitive pressure in the hose that will draw up water from my sump (where the effluent is going)? It's so crazy that it just might work... (but is that how it works?) puntific Quote Link to comment Share on other sites More sharing options...
reef165 Posted January 15, 2010 Share Posted January 15, 2010 It's the pump on the reactor pulling water down to the bottom of the reactor that creates the suction. It's hard to explain but at the top of the reactor where the effluent hole is there is a positive pressure from the water returning into the reactor from the pump and as the water is pulled through the media a negative pressure gradually increases as it gets closer to the bottom of the reactor. Make sence? Quote Link to comment Share on other sites More sharing options...
Ryan Posted January 15, 2010 Share Posted January 15, 2010 Ryan' date=' who built your reactor? Do ya have any pic's of it before going into the sump?[/quote'] Heres the link to my build thread on it... http://www.pnwmas.org/forums/showthread.php?t=10507 It was my first big acrylic project...before I had access to a laser cutter It worked great! I would use the same design if building another calcium reactor. I just dont feel like I have enough control over cal/alk with a calcium reactor, so now I use 2 peristaltic pumps and BRS chemicals. Quote Link to comment Share on other sites More sharing options...
reef165 Posted January 15, 2010 Share Posted January 15, 2010 Very nice build Ryan! Now that I see it I remember it. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.