Euro-Reef Eheim NW Thread
- Thread starter Jim_S
- Start date
Fliger
New member
IIRC, mine dropped more but I'm not quite sure. I'll probably bore one out with a dremel but in all honesty I sometimes feel like you get more skimmate when you have a tighter bubble pack.
(I felt bad for my Card fan friends but I hate the Bidwells. You can't escape Karma. :lol: And I can't wait to see Amare back!!!!!!)
(I felt bad for my Card fan friends but I hate the Bidwells. You can't escape Karma. :lol: And I can't wait to see Amare back!!!!!!)
Reefologist
New member
Time for more pictures jimdoggggggg......please.....
Lunchbucket
Premium Member
bought time my bears are good. it's been since the 80's 
ok back to the topic at hand MORE PICS..DAILY PICS
Lunchbucket
ok back to the topic at hand MORE PICS..DAILY PICS
Lunchbucket
Lunchbucket
Premium Member
yeah cerreta has done a hell of a job! more thourough then i thought anyone would be THANKS.
jim that sounds great
Lunchbucket
jim that sounds great
Lunchbucket
Lunchbucket
Premium Member
no problemo buddy
Lunchbucket
Lunchbucket
hahnmeister
In Memoriam
What do you guys think of the Tunze Master Pump's potential as a mixing pump. The adjustable speed (the pump itself is DC) might provide some insight into the relations between speed and throughput... as far as what the best speeds are for each type of impeller material.
hahnmeister
In Memoriam
Some of you might find some of the reasons the ATI BM's arent using the eheims to be interesting... http://www.zeovit.com/forums/showthread.php?t=6552&page=13
"Hallo,
The reasons why we changed the pump were different.
First, we find out that not all Eheim Rotors (magnets) were well balanced (before we start to modify the Rotor) and because of this some Pumps were silent and some pumps were not so silent.
This was unacceptable for us (we have hundreds of not well balanced Rotors in our Stock) and not the best solution for our customers.
Another point is the geometrie of the Eheim Pump. This Pump is a good Pump to move Water. And this is exactly what the pump was made for. But to have a good Skimerpump, we have to modify this Pump (prechamber, wateroutlet etc).
The new pumps have a pefect geometrie (large prechamber etc.) and we do not have to modify the pump. Perhaps this is the reason, why Tunze will use this Pump(but with needle wheels), too.
The most interesting point with this new pumps is the fact, that it is possible to use this pump without ceramicshaft. The complete Rotor has no contact to the pump or case (only the waterfilm) and because of this the pump is absolutely wear resistant and very silent. I think, this is the first Skimmerpump that can work in this way.
Anyway, we have tested this pump 6 Month now and we are very happy with the results. Silent, less or no wear, low Energie consumption and a high performance.
Thanks,
Oliver"
Seems the new ATI pumps for the US are the same pumps Tunze uses on their skimmers. It also suggests that the limitation of a given pump has to do with its inlets and outlets, as well as pre-chamber size (shroud diameter) more than speed and impeller size. I was on to something, wasn't I....???
"Hallo,
The reasons why we changed the pump were different.
First, we find out that not all Eheim Rotors (magnets) were well balanced (before we start to modify the Rotor) and because of this some Pumps were silent and some pumps were not so silent.
This was unacceptable for us (we have hundreds of not well balanced Rotors in our Stock) and not the best solution for our customers.
Another point is the geometrie of the Eheim Pump. This Pump is a good Pump to move Water. And this is exactly what the pump was made for. But to have a good Skimerpump, we have to modify this Pump (prechamber, wateroutlet etc).
The new pumps have a pefect geometrie (large prechamber etc.) and we do not have to modify the pump. Perhaps this is the reason, why Tunze will use this Pump(but with needle wheels), too.
The most interesting point with this new pumps is the fact, that it is possible to use this pump without ceramicshaft. The complete Rotor has no contact to the pump or case (only the waterfilm) and because of this the pump is absolutely wear resistant and very silent. I think, this is the first Skimmerpump that can work in this way.
Anyway, we have tested this pump 6 Month now and we are very happy with the results. Silent, less or no wear, low Energie consumption and a high performance.
Thanks,
Oliver"
Seems the new ATI pumps for the US are the same pumps Tunze uses on their skimmers. It also suggests that the limitation of a given pump has to do with its inlets and outlets, as well as pre-chamber size (shroud diameter) more than speed and impeller size. I was on to something, wasn't I....???
Jim_S
Timo Boll
Christine,
The sp4 IMHO was a great performer. It worked very well for me and produced great results. It just makes too much noise for my liking. I'm sure with the new impellers, these are going to be much more powerful.
The eheim is doing great as well. I believe the only noticeable difference is in noise level. The bubbles appear to be smaller, but I'm using a new style NW as well. Overall, I just want silence, so I like the eheim for that reason.
Hahn,
You raise a very interesting point. By adjusting the speed there may be a "sweet spot" with different style impellers.
Jim
The sp4 IMHO was a great performer. It worked very well for me and produced great results. It just makes too much noise for my liking. I'm sure with the new impellers, these are going to be much more powerful.
The eheim is doing great as well. I believe the only noticeable difference is in noise level. The bubbles appear to be smaller, but I'm using a new style NW as well. Overall, I just want silence, so I like the eheim for that reason.
Hahn,
You raise a very interesting point. By adjusting the speed there may be a "sweet spot" with different style impellers.
Jim
hahnmeister
In Memoriam
I was thinking of getting a Tunze Master Pump anyways... hmmmm...
See, I find some comflicting reports about its output, but 792gph is what Ill go with. I think some US sellers try to list it as 900gph so it sounds like it gets that 60Hz boost like the eheims, but since its a DC pump I dont see that happening... the controller would nullify the AC Hz. But thats still 792gph of flow, more head than an eheim, and a 1" outlet diameter. Thats like a deltec modded H&S/deltec pump... marine depot has them for only $127 too...
I wonder what the diameter/size of the shroud's interior is like, and what the intake is like. Im going to go ask Tunze...
See, I find some comflicting reports about its output, but 792gph is what Ill go with. I think some US sellers try to list it as 900gph so it sounds like it gets that 60Hz boost like the eheims, but since its a DC pump I dont see that happening... the controller would nullify the AC Hz. But thats still 792gph of flow, more head than an eheim, and a 1" outlet diameter. Thats like a deltec modded H&S/deltec pump... marine depot has them for only $127 too...
I wonder what the diameter/size of the shroud's interior is like, and what the intake is like. Im going to go ask Tunze...
Last edited:
cerreta
Premium Member
Here are a few pics of mine.
This is a shot before I tuned the water level up to the lock ring.
Notice how the foam level is up high in the body. Also there are large bubbles forming in the neck. This shot is also before I placed the 45 degree pipe on the Eheim pump discharge outlet.
This is a shot after tuning the water level up higher and placing the 45 degree pvc fitting on.
Closeup of the fine foam in the collar.
Skimmer cup after 48hours.
This is a shot before I tuned the water level up to the lock ring.
Notice how the foam level is up high in the body. Also there are large bubbles forming in the neck. This shot is also before I placed the 45 degree pipe on the Eheim pump discharge outlet.
This is a shot after tuning the water level up higher and placing the 45 degree pvc fitting on.
Closeup of the fine foam in the collar.
Skimmer cup after 48hours.
Reefologist
New member
Sweet pic's guys....thanks...
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