COR-20 or COR-15 Reviews/Updates/Tips

[cccharliecc]

Thought I would start a thread for the users who purchased a COR-20 or COR-15 and get initial thoughts.

I have a COR-20 that I installed on a new 220 gallon tank about 5 days ago and I am blown away at two major things:
1. The pump is so quiet!!!!!
2. The pump is powerful!!!

I can't believe how quiet it is, I cannot even hear it running. I only wish I can get a skimmer pump as quiet.

The power is rediculous....I have it at 28% right now...still dialing it in, but my over flows cant keep up if I crank it up anymore...

Totally impressed with the pump....AWESOME!!!

 

[Maximus]

I agree with everything you said above. I absolutely love my Cor 20! I have it on 40% at 23 watts and it's doing a great job on my 90g tank. One of the best upgrades I have ever made.

 

[cccharliecc]

How did you get yours up to 40% without crazy noise from your overflows?

 

[Maximus]

I run the Synergy overflow which has 1.5” drains so it can handle much more flow.

 

[justingraham]

Ok so I agree with your two statements

But I have a question what pump did you replace?

I run two return pumps both were vectra m1s now one is a cor 20.

So the inside of a cor 20 is pretty much the same as a m1 the cor 20 caseing is different

The power charts are pretty much the same if you look at it then next to each other

Being able to control in the apex is prettt cool not going to lie

But I get more gallons an hour per watt with the vectra m1. I was using roughly 50 watts for 500 gallons an hour with the m1 with the cor I am spending 65 watts for the same 500 gallons an hour on the same plumbing.

I just got my cor today so I haven’t really messed with it tons but my first thoughts on an energy stand point is that the vectra is more energy efficient
I also noticed that the outlet is pulling more watts roughly five more then what the tile says

Has anyone else noticed this or do I have to wait till it breaks I. Or I am doing something wrong

I’m not mad at my purchase tons of cool things to do with it connected to the apex but my first impression is if you don’t have an apex might wanna look into a vectra

 

[Maximus]

It replaced a perfectly fine running Tunze 1073.05 dc pump. I just wanted to try something with more flow and now I have it. I have no experience with a Vectra.

 

[ksed]

It replaced a perfectly fine running Tunze 1073.05 dc pump. I just wanted to try something with more flow and now I have it. I have no experience with a Vectra.

Does it run quieter than the Tunze?

 

[Maximus]

Does it run quieter than the Tunze?

I had minimal issues with noise from the Tunze but I honestly cannot hear the Cor at all. So I would say yes, it does run quieter than the Tunze.

 

[Broadfield]

I can't believe how quiet it is, I cannot even hear it running. I only wish I can get a skimmer pump as quiet.

A Nyos Quantum skimmer is that quiet!

I have a COR-20 that I will be plumbing in shortly... replacing a Vectra L1. I have also owned a Vectra M1 on this tank... so it will be nice to compare them all.

 

[justingraham]

A Nyos Quantum skimmer is that quiet!

I have a COR-20 that I will be plumbing in shortly... replacing a Vectra L1. I have also owned a Vectra M1 on this tank... so it will be nice to compare them all.

Me too privledge problems I guess
the l1 I couldn’t use to its potential tho with my plumbing
I’m enjoying the cor a lot tho
And after messing with it the watts to gallons per hour are about the same I had the wrong flo meter selected

 

[boozeman27]

Following!

 

[Maximus]

Can you guys post your flow percentages, rpm, and temp? Also what size output are you using? Here’s mine:

Flow %: 40%
Rpm: 1996-2008
Temp: 49%
Output size: 3/4”

Wish I knew what the optimal rpm and temp should be.

 

[cccharliecc]

Flow %: 28%
Rpm: 1879
Temp: 52
Output size: 1 1/4 Tee'd to 1'' then 3/4” loc line into the tank.

 

[suckerfishdish]

Running at 40%.
1 1/4 to 3/4 lock line

 

[ksed]

The temps seem to be all over the place.

 

[wcharon]

Does this readings also applies for the APEX Classic thru Fusion or we need the New APEX?

 

[wcharon]

Does this readings also applies for the APEX Classic thru Fusion or we need the New APEX?

 

[Fritzhamer]

My experience/ thoughts:
The extra union they include is nice but the actual unions, the 3/4" and 1" unions have no side walls. The 3/4" union is roughly 1/3" of an inch deep! I wouldn't trust that to hold at all. I'd be terrified that I'd bump it and cause a leak. I've never seen any PVC fitting not be at least as deep as the diameter of the pipe. I think that was a huge miss on their part and probably why they decided to include the larger union. The output also comes out of a 3/4" wide hole, regardless of how big a union you put on it. Another miss in my book. I'm hoping later revisions include proper unions for the 3/4" and 1" and perhaps a larger output. I really like how Jebao (I know, I know) handles the design. They have like a true 1.5" output that you can fit several sized outputs onto; 1.5", 1.25", 1", 3/4" etc. I think that is better thought out than a 3/4" output that you can screw a 1.5" or 1.25" union onto.

I'm also not crazy about having to break out a hex key to remove the shroud and impeller every time a piece of cheato finds its way in there. I'm a big fan of the newer (and older) pumps that can be field stripped by hand in seconds. If I'm really being honest, an intake screen would have been a nice touch as well. Perhaps they were trying to come in low on the price point? I'm happy paying more for a quality product, which is what Neptune Apex is to me. This, I feel, felt short of that expectation. I think for what would have cost an extra $50 (retail) they could have nailed it and been at a price point everyone would have been happy with.

 

[justingraham]

This is my flow

I have this run straight up then a 90 to one inch and flo sensor then thru a 3/4 sea swirl with a penductor

Weird thing this morning happened one of the cor pump parts was humming very loud before work I was messing with the controller and the volt error came on does anyone know what that means?

Also here is the pump inerds compared to a vectra m1 inerds also a side by side

 

[ca1ore]

Does this readings also applies for the APEX Classic thru Fusion or we need the New APEX?

My understanding is that the COR is fully compatible with the older apex models.

 

[ca1ore]

What will be most interesting to me is pump longevity - and that obviously won't be apparent for a while. I've been using the Vectra M1 on a closed loop since it was released 2 1/2 years ago and it has been problem free for me. While it would be a nice-to-have to be able to see pump status through my apex, it's hardly a must have. My irritation with the Vectra initially was that I had to buy a reeflink, which at the time I felt was redundant. Since then I've switched mostly to Radion lights so the reeflink is now much more useful. So, for me, it's reliability and will the COR be among the first of the non-stratospherically-priced DC pumps to be Iwaki/PanWorld-comparable.