Flow

orucco

orucco

Member
I have a 75 gal ( 48x18x20 ) with 90 lbs. of liverock with 260 watts of pc lighting 2x65w 10k daylight and 2x65w actinic03. I have a wet/dry with Gen X 4100 (1085gph) in sump and according to mfr. I am getting 700gph 4' from head. I also have a maxi 900 (235 gph) at opposite corner from return. Iwas going to purchase a 3/4" sea swirl to put on my return until I read the posts, especially Squidd's, and I am now more inclined to build a closed loop as the sea swirl will not give me anymore turnover. I will search again for the "spider looking" cl example I have seen on this forumwith 4 returns. What would be a good pump to use? I was thinking of getting a mag 12 or 18. Am I on the right track? I sure do appreciate this forum and wish I would have discovered it before purchasing some of my equipment. Sorry for the long post.
 
orucco

orucco

Member
I just read on an on-line marine fish and equipment vendor"Note: Mag-Drive pumps are not recommended for external use." Is this true?
 
J

jfdjason

Guest
Been using a Mag externally for years now and have never had a problem. I do know that people have said that they do leak, but as far as me....no problems. I would also say this.....IMO Quiet One pumps are 10x better than the Mag products. I have been running one know for quite awhile and....
1. I dont have to service it as much as the mag.
2. Pumps alot quieter.
3. Cost a hell of a lot less.
 
squidd

squidd

Active Member
Third..
But I'm not "excited" about running submersable designed pumps "external" although you can "get away" with it...
 
orucco

orucco

Member
Thanks again and what would you suggest for a quiet external or my local lfs will sell me a 3/4" sea swirl rebuilt by the mfr. for $139?
 
msd2

msd2

Active Member
actually the quiet ones supposedly designed to go either way. The one I used had adapters for both sub and external use. Not sure how much flow you want to get from this system or the head pressure but the 3000 moves quite a bit of water, or even 4000. I think I have the factory specs somewhere. Here is the chart for the 3k
 
J

jfdjason

Guest
I have a 4000 running submersible and the 3000 going external. Love them both.
 
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