Euro-Reef Eheim NW Thread

[revance]

Alright, I'm sorry, but I just have to step in and make a few corrections.

The pumps are not using 40w of power...

Current and power are DIRECTLY related, you can't pull more current and not use more power (like someone speculated earlier) unless you lower your voltage! The reason your kill-a-watt meter is only showing 40w is because you are measuring real power not apparent power. Try switching the kill-a-watt meter to measure volt-amperes instead.

Basically the pumps have a very poor power factor that results in a low real power to apparent power ratio. You can check your power factor on the kill-a-watt meter too (1 is perfect as you get lower, it is worse). You are actually USING 85w of power, but luckily the power company is only charging you for 40w. The bad thing is it dirties up your power lines.

Large factories actually have their power factors audited by the power company because they could remove the power factor corrections (aka capacitors) from their large motors etc. to try to save money. If they have a bad power factor, they get charged lots of penalties.

If you want to learn more about AC power check out wiki
http://en.wikipedia.org/wiki/Power_factor

 

[cerreta]

uhh, thanks dude, for complicating things.

I'm not too concerned with the semantics, but thanks for the info. I used the same meter on two different devices to note differences. Regardless of the semantics, the differences were negligible.

 

[tacocat]

<a href=showthread.php?s=&postid=8360751#post8360751 target=_blank>Originally posted</a> by Lunchbucket
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. Here's the new ER 1500 (that's what I think it is).

 

[hahnmeister]

Sick. Just completely sick. ER is beginning to impress me finally with those eheims. I think I might consider one over a H&S or Deltec now...

 

[cerreta]

That's insane. :eek1:

Matt, I think this is the answer we were looking for. . . hehehe

Last week, Turbosnail and I were discussing at what point would we be satisfied with skimmers. We have been searching for ways to mod the skimmers: different pinwheels, more air, bigger pumps, boring out the volutes etc. to get the most out of them.

Then we came to the conclusion that all of these top end skimmers perform excellent and if you really want to get more results than we should just buy a larger skimmer.

So then we thought, what the hell do we really want to do to the water quality in our 110tall reefs. We decided that we do not just want to skim the water, but rather we want to skim the poop right out of the fish. We would also like to skim the mucous out of the corals before they shed that too.

 

[cerreta]

What are the dimensions of the Shaq skimmer?

 

[Reefologist]

WOW! Now that has to be a foam factory.

 

[Felixc]

<a href=showthread.php?s=&postid=8377839#post8377839 target=_blank>Originally posted</a> by hahnmeister
Sick. Just completely sick. ER is beginning to impress me finally with those eheims. I think I might consider one over a H&S or Deltec now...

I am almost there too, however, I would like to see what the new prices are on the new ER. Where would a guy find the new ER in the RC250 and bigger.

 

[Jim_S]

Nice. Thanks for the pics tacocat.

Jim

 

[scarletknight06]

wow that thing looks awesome.

Anyone else notice the difference between the way H&S and deltec make their skimmers with a larger body and shorter neck, whereas the ER's seem to have a shorter (sometimes wider) body and a much taller neck?

What would be the pro's and con's of the two designs?

 

[Jim_S]

Yes, I have noticed that difference.

The H&S seems to use a wider neck while the Deltecs use a neck similar to those use by ER. But ER does seem to use a longer neck than the other two companies.

I was no fluid dynamics major in college, so I have NO idea what the pros and cons are.

Is there anyone with some insight that could chime in?

Jim

 

[tacocat]

I don't know the dimensions are, but the first thing I thought was that the body seems kinda skinny for 5 Eheims. I'm wondering if they will cause too much tubulence. Who knows, maybe the extra turbulence will increase performance.

If you take a look at Deltec and H&S's 4 x Eheims, the bodies get very wide. They are wider than Brute trashcans. The wide short body reduces head on the pumps, but still provides a large reaction chamber.

 

[cerreta]

Anyone else notice the difference between the way H&S and deltec make their skimmers with a larger body and shorter neck, whereas the ER's seem to have a shorter (sometimes wider) body and a much taller neck?

Hmmm, intersting observation. I think this is proof that testing different designs with different pumps leads to changes in the neck size and length by all three of these companies. My guess is that when the companies test skimmers they change multiple things to get the best performance.

That statement is not universally true. It appears to be the case for the ER RC1500 and a pic of that H&S skimmer pictured. However, I have observed the exact opposite difference between the H&S 200-1260 and the ER RC 180. The 200-1260 has a shorter 8" body and a longer neck with larger skimmer cup height to accomdate the long neck without giving the appearance that the neck is so long. Does this make sense? And, the ER RC180 has a taller 8" body with shorter neck and smaller height used on the collection cup.


So if you go back and look at the two pics, notice the height difference in the collection cup. Without knowing actual lengths, it looks like the H&S has a 10" cup and the ER has a 5" cup. So if yo made the ER cup 10" or the H&S 5" then the two would look more similar, but the actual length of the neck height would not change at all.


Tacocat, can you give us some real measurments of these skimmers?

 

[cerreta]

When measuring neck length, one should measure from the top of the reducing cone to the lip of the acrylic tube where foam befings to spill out into the collection cup. You do not measure from the cone to the bottom of the collection cup, as this does not account for the full length of the riser tube.

 

[hahnmeister]

One common complaint about just about any type of skimmer is that they can surge after a feeding, or go crazy and overflow the collection cup. The narrower, taller neck helps prevent this.

People with any type of skimmer that have had this problem should not look at the skimming mechanism (beckett, venturi, asperating NW, downdraft), but rather the collection cup. This is where the problem lies. (IMO). The daimeter of the body, the diameter and height of the neck, and the transition from one to another are more to blame for this.

 

[scarletknight06]

tacocat,
is that your ER 1500 or just a pic you found?

 

[tacocat]

It belongs to someone I know. It was one of the first ones ER shipped out. I was playing with it and after putting all the pumps on, I thought, "I bet a people would get a kick out this."

Of particular note, it does have drain valve at the bottom and a cool new decal. It also uses the same air taps the Deltec uses. My buddy should have this thing working in a couple of weeks, and maybe, just maybe if you all behave (that goes double for Lunchbucket) I will post pics of this thing in operation.

I'll look into taking air readings on it also.

 

[scarletknight06]

sweet

 

[Jim_S]

Great tacocat!

I'm interested to see what the air readings will be as well.

Jim

 

[Lunchbucket]

<a href=showthread.php?s=&postid=8380218#post8380218 target=_blank>Originally posted</a> by tacocat
My buddy should have this thing working in a couple of weeks, and maybe, just maybe if you all behave (that goes double for Lunchbucket) I will post pics of this thing in operation.

i'll be have but what fun is that. that skimmer is a beauty!

i want to buy a new ER w/ the eheiems and sell off my APF600 and my ER RC80 so i can be an eheim ER person too i guess i have to wait for those dang 1250's to come out

Lunchbucket