jrcsh6 Posted February 21, 2013 Report Share Posted February 21, 2013 I aquired 2 750 evo's recently and tried to use them for the first time to mix some water. They are used but anyway very low flow. I was gonna try some of that cleaner stuff from Hydor but other ideas/advice? Quote Link to comment Share on other sites More sharing options...
Reefhappy Posted February 21, 2013 Report Share Posted February 21, 2013 i would think if it is just a cleaning that they need..... a good soak and scrub with vinegar and water would work just as good as anything you can buy. Quote Link to comment Share on other sites More sharing options...
jrcsh6 Posted February 21, 2013 Author Report Share Posted February 21, 2013 hopefully the cleaning does it. here's info on that hydor chemical - fyi http://www.mrsaltwatertank.com/vinegar-is-so-last-year-hydors-magi-klean/ Quote Link to comment Share on other sites More sharing options...
Dustin1300 Posted February 21, 2013 Report Share Posted February 21, 2013 I remember seeing the cleaner on from that video but think it's more snake oil The vinegar does a great job and I soak all my pumps/wetsides in it every few months (Just did this past week) and scrub and I'm good. The impeller probably is covered and is slowing down a lot. Quote Link to comment Share on other sites More sharing options...
jrcsh6 Posted February 27, 2013 Author Report Share Posted February 27, 2013 Alrighty... Did the Magi Klean. As the guy in the video found it does a nice job. Better than the vinegar I've done before but the end result is probably the same. regardless. These pumps still don't gush water like i'd hoped. Maybe i'm expecting too much? When placed in a bucket for example about half way down there are just small ripples at the surface, is this right? I'd have thought I'd get some turbulence. I'm going clean the magnums i have in the tank already and change one to the Algea Sure Flow magnet and impeller. Apparently its a pretty good upgrade of flow. Quote Link to comment Share on other sites More sharing options...
Jaco Posted February 27, 2013 Report Share Posted February 27, 2013 I have the same pumps and agree they are not the most powerful. My MJ900 makes more wake in my 5 gallon bucket then these while mixing salt. Quote Link to comment Share on other sites More sharing options...
Dustin1300 Posted February 27, 2013 Report Share Posted February 27, 2013 Koralias have a much different flow pattern than something like the MJ900 so it's hard to compare apples to oranges. I'm sure each manufacturer uses different lab equipment to determine values too so it could just not be putting out as much flow as advertised. You'll have to let us know about your mods! Quote Link to comment Share on other sites More sharing options...
jrcsh6 Posted February 27, 2013 Author Report Share Posted February 27, 2013 Quote Link to comment Share on other sites More sharing options...
Dustin1300 Posted February 27, 2013 Report Share Posted February 27, 2013 That' looks like a significant improvement. Quote Link to comment Share on other sites More sharing options...
jrcsh6 Posted February 27, 2013 Author Report Share Posted February 27, 2013 That' looks like a significant improvement. Yea, hopefully it's not too much. Quote Link to comment Share on other sites More sharing options...
Dustin1300 Posted February 27, 2013 Report Share Posted February 27, 2013 Yeah....Makes me think more and more about the DC pumps. Cobalt just released some info about a DC pump they'll have and is controllable. Hopefully another controllable pump on the market that can help drive more competition between Tunze and EcoTech. http://reefbuilders.com/2013/02/20/neoflow-pump-cobalt-aquatics/ Quote Link to comment Share on other sites More sharing options...
Jtroutt19 Posted March 5, 2013 Report Share Posted March 5, 2013 Hey one thing with those hydor koralia pumps. Make sure you have the plug plugged in the right way. If you plug them in backwards they will flow backwards. Meaning water will flow in where is susposed to flow and out. Most plugs have a single larger prong to prevent reversing the polarity, but the plugs for my koralias don't Quote Link to comment Share on other sites More sharing options...
jrcsh6 Posted March 5, 2013 Author Report Share Posted March 5, 2013 They are puping right, just way less than I expected. That coming from x2, Magnum # 5's Quote Link to comment Share on other sites More sharing options...
Dustin1300 Posted March 5, 2013 Report Share Posted March 5, 2013 They are notorious for leaking current and they've accounted for 2 of the 4 times I've been shocked by my tank. Now I have GFI circuits on everything as well as ground probes Quote Link to comment Share on other sites More sharing options...
Reefer82 Posted March 6, 2013 Report Share Posted March 6, 2013 Ill second the electrical issues. I was testing a k1 out awhile back in the sink and it lit me up like a christmas tree. Easily the worst shock I've ever had. I had never had an electrical issue w any aquarium related equipment before but now I know better. Quote Link to comment Share on other sites More sharing options...
Dustin1300 Posted March 7, 2013 Report Share Posted March 7, 2013 Ill second the electrical issues. I was testing a k1 out awhile back in the sink and it lit me up like a christmas tree. Easily the worst shock I've ever had. I had never had an electrical issue w any aquarium related equipment before but now I know better. Get shocked by a heater...That k1 was nothing! (Actually don't try it, that might have taken a year off my life and all I was trying to do was QT a tang that had ICH ) Quote Link to comment Share on other sites More sharing options...
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