It's supposed to be able to, but they have no reputation for being used that way (almost no reputation at all, I guess)....asking post-purchase is maybe a bit too clever though! ;)
Honestly I didn’t want another reelflo pump when my 300 was in the garage I needed the extra and didn’t want a iwaki , or pan world . I have used reeflo pumps for over 20years and I am just tired of always having to replace the seals . Also I wanted to try a DC pump and not pay 60.00 a month just in running my pump . I have plenty of room in my sump to put the pump just wondered how they did external and if I like the pump I can but 2 more and still would be cheaper then one hammer head . Plus if it works good I will change out both my darts on my mixing station . If I can do that that would save me almost 120.00 a month just not running reeflo pumps.
Thank you for your response. I guess I will just put it in my sump
If you'll report back I'll be interested to see how it does for you. If possible, I'd love to see it on a killawatt meter.
I didn’t get a notification that you replied . Well there will be no trying to run the pump external . I got the pump into and was testing it out and the impeller housing leaks pretty good . So I guess in the sump it goes. If I had a kilowatt meter I would let you know. I get what you’re saying about the reeflo . The two I have one is 18 years old and the other is 16 . One of the reason I am tired of them is when the seal goes out . Even with a leak detection module on the apex I have had the seal go completely out all at once and flood things several times over the years . And when that happens and I am not home I have lost a lot of coral and fish . So maybe it’s best that I will be using this pump in the sump . This weekend will tell me what I need when I plumb it in a see what kind of flow it has going upstairs .
That's a small bummer...but now your heaters won't have to work quite as hard!
I mean this: Kill A Watt Power Meter
You've certainly gotten your mileage out of them in that case! $300/(17*365)=$0.05 per day. I've never really computer a pumps value like that (and it's def. oversimplified), but if we compare pumps I bet that number is hard to beat.
The will also be interesting....to see if it gets the flow it claims, etc.
Oh I definitely got my money worth out of them but also lost more then the pumps where worth when the sealed gave out at once . Now the pump go between 500-699.99 and ,1000-1400 is a hard pill to swallow knowing what I now about the seals .Dont get me wrong reeflo pumps are very good at what they do . But I can get two of these pumps for less then one of the reeflo .That's a small bummer...but now your heaters won't have to work quite as hard!
I mean this: Kill A Watt Power Meter
They don't cost much, at least for the base model, and even Harbor Freight seems to stock them, so they're somewhat around even locally. Looks like about $35 on Amazon. Peanuts in the long run. :)
You've certainly gotten your mileage out of them in that case! $300/(17*365)=$0.05 per day. I've never really computer a pumps value like that (and it's def. oversimplified), but if we compare pumps I bet that number is hard to beat.
The will also be interesting....to see if it gets the flow it claims, etc.
I'm very curious about actual power consumption too.....I hope you decide on a KillAwatt or I'll have to get one of these pumps to test myself! (someday)
Yeah, I see prices around $500 on a quick search, by no means "cheap" per se.
You definitely have to account for that. Maybe it could be prevented in the future somehow though....maybe altering the installation a bit or whatever since detection alone didn't seem to prevent the damage.
No there is nothing that with the install that could help . It is a straight shot from the sump to the pump and a straight shot up through the floor to the tank . No 90s no 45s . Also the pump sits in a vibration pad . The problem with these pump is once you notice the signs of the seals leaking the seal is gone . Ok so look at other pump . Echotech , Apex , Sicce and Mag drives all have there share of failures. Are there people that have those pumps I listed not have problems yes do you have people that have problems with them yes . Same with the jebao pumps I have read of complete failures as well as people have great success with them . I am not biased to any brand . No there are some brands I refuse to buy and that is from my own experience with that company . As far as recycling, there are places I send my old pumps And power heads to that recycle 100% of the unit . It’s no different recycling any of the pumps you listed . I don’t know why you seem to have a distaste for Jebao pumps or knock off but I am open to try different things .
What kinda of head height are you running your . Mine will be running about 14ft . 4 foot over then 10ft up . As long as I can end up with 750 to 1000 and hours that gives me my 5 times a hour turn over .
So that's about 180g display with sump 14' below, and over some?
Yes
I never calculated my actual turnover, but at about 5' head(through a manifold), mine almost fills (2) 1" pipes(full siphon] clean. Looks like a white capped river in 55g sump. And it slows as the years go by without cleaning.
I will see what it does and I wish the seals were $5 . They are 36.00 plus shipping from reeflo and 46 and up at other retailers.
I've read of lots of different failure modes for Reeflo's (which you can only do with a pump that has a track record), most thankfully don't seem to be catastrophic like that, but there's a fair share of that are.
Actually there's a big difference to a brand/product with a track record and a no-name band with a new untested product. If you've been in the hobby this long, but using external pumps, maybe you've been sheltered from what cheap pumps are like....it isn't the same as Mag, Sicce, Ehiem or even Quiet One....not by a wide margin.
I'm not either...I think I said what my main bias was a post or two back.....I'm biased toward submersibles in general.
Your experience ≠ an average. That is a bad assumption.
I made a similarly simplistic guess about the Reeflo pumps a few posts earlier. 
