fishaholic911
New member
adamsky27 if you want a skimmer that really kicks @** get a deltec. I am sure Scott and John will agree.
January Frag Swap!
- Thread starter adamsky27
- Start date
cerreta
Premium Member
Gary I do not agree. Both skimmers perform well. Each skimmer has advantages and disadvantages.
I have not yet done full testing and measuring of skimmate. But, I can tell you that there are subtle differences in design.
Two major differences:
One is neck diameter. The Deltec uses a 3.5" neck and the ER uses a 4.5" neck.
Two, both skimmers have the same pump. Deltec trims the pins off the impeller because the neck diameter is too small and air volume is too great for the neck size. So they modify the impeller for this reason. ER does not have to do this.
I think the reason most people say the Deltec outperforms the ER is because of skimmate output. It is difficult to tune the Deltec to produce a dry skimmate because of the neck diameter. The bubbles in the neck are also a blend of coarse and fine bubbles, whereas teh ER has all fine bubbles.
After weeks of playing to run the ER wetter, I had to lift the water column way up into the neck. The volume output between the two were then matched.
Just with casual observations I think the two perform extremely well and do the job they are intended to do. The ER offers more flexibility with fine tuning and uses better materials. The Deltec is a turn-key skimmer that is perfect to use for wetter skimmate right out of the box. While materials are of lesser quality, I find that it is lighter and easier to handle. The skimmer cup fits better and is easier to remove and all the parts are glued to the body. Therefore, it has better build craftsmanship.
Both skimmers are excellent and perform well. I would recommend the Deltec for those who want somthing to perform with no mods nad no maintenance. You must be happy with a wet foam.
I recommend the ER for those who like to tweak, since you need to do a few mods to get this skimmer to perform optimally. However, you have more choices with running wet or dry, more throughput or less. You can also save some money with the ER.
I have not yet done full testing and measuring of skimmate. But, I can tell you that there are subtle differences in design.
Two major differences:
One is neck diameter. The Deltec uses a 3.5" neck and the ER uses a 4.5" neck.
Two, both skimmers have the same pump. Deltec trims the pins off the impeller because the neck diameter is too small and air volume is too great for the neck size. So they modify the impeller for this reason. ER does not have to do this.
I think the reason most people say the Deltec outperforms the ER is because of skimmate output. It is difficult to tune the Deltec to produce a dry skimmate because of the neck diameter. The bubbles in the neck are also a blend of coarse and fine bubbles, whereas teh ER has all fine bubbles.
After weeks of playing to run the ER wetter, I had to lift the water column way up into the neck. The volume output between the two were then matched.
Just with casual observations I think the two perform extremely well and do the job they are intended to do. The ER offers more flexibility with fine tuning and uses better materials. The Deltec is a turn-key skimmer that is perfect to use for wetter skimmate right out of the box. While materials are of lesser quality, I find that it is lighter and easier to handle. The skimmer cup fits better and is easier to remove and all the parts are glued to the body. Therefore, it has better build craftsmanship.
Both skimmers are excellent and perform well. I would recommend the Deltec for those who want somthing to perform with no mods nad no maintenance. You must be happy with a wet foam.
I recommend the ER for those who like to tweak, since you need to do a few mods to get this skimmer to perform optimally. However, you have more choices with running wet or dry, more throughput or less. You can also save some money with the ER.
fishaholic911
New member
Did you test the skimmers together in the sump or separely and are you gravity feeding both? I ask because I have ran to er's in my sump @ the same time and one always out skimmed the other one and vise versa. I could not ever figure this out so I decided to run one larger skimmer( higher rated) rather than to smaller ones. Any ideas why this might happen?
cerreta
Premium Member
I ran them side by side at the same time. Each skimmer has a flow throughput of aprox 300gph. I too observe differences between the two, however, these differences are due to how the skimmers are setup. I can tweak the ER to make it perform wet and produce the same amount of skimmate as the Deltec. It is all a matter of dialing them in. This experiment has actually help me understand how to adjust them.
I had a hard time getting teh Deltec to run dry like I prefer. This would be easier to do if I reduced the throughput to around 200gph. Again, this is a function of the smaller neck diameter.
I had a hard time getting teh Deltec to run dry like I prefer. This would be easier to do if I reduced the throughput to around 200gph. Again, this is a function of the smaller neck diameter.
Scott, I'll try to get Liz close up the bubbles on mine they are super-fine and tubulent. Deltecs have a flow rate and height that impact wet to dry. When you get a chance come by and I'll run it from wet to dry. Maybe the its the difference in model numbers, I don't know. I have a ER CS5-2 with a spare brand new SP-2 I'll sell for a resonable price. Not giving it away cause I will use it on my freshwater as a air suppliment.
buckeyenewbie
New member
I prefer the 21st at about 1:00pm.
Sondra
Sondra
cerreta
Premium Member
John, the reason it runs wet is due to the high flow thoughput, small neck diameter 3.5", and small output pipe of 1". This skimmer is rated for 475gph, which I actually think is an error. I have not had the time to ask Doug yet.
Here are the specs:
http://www.deltecusa.us/proteinskimmers/ap701.php
The skeptical part is that the next skimmer smaller (APF600) is rated at 275gph, and the next skimmer larger (AP851) is rated at 375gph. So why is the AP701 rated at 475gph? It mus tbe an error.
Anyhow, I am running it at 300gph and the valve is wide open. I could make it run dryer, but would have to sacrifice flow throughput. Therefore, if I run it at 200gph I could get the foam dryer and maybe the bubbles will be finer too. This was going to be a future test after the break-in.
In either case, the larger neck of 4.5" and larger output pipe of 1.5" on the ER will take this flow throughput of 300gph and still permit tuning to run wet or dry. I could probably run the throughput up to 425gph, I would guess. That would be impressive!
1pm sounds good on either day for me.
Here are the specs:
http://www.deltecusa.us/proteinskimmers/ap701.php
The skeptical part is that the next skimmer smaller (APF600) is rated at 275gph, and the next skimmer larger (AP851) is rated at 375gph. So why is the AP701 rated at 475gph? It mus tbe an error.
Anyhow, I am running it at 300gph and the valve is wide open. I could make it run dryer, but would have to sacrifice flow throughput. Therefore, if I run it at 200gph I could get the foam dryer and maybe the bubbles will be finer too. This was going to be a future test after the break-in.
In either case, the larger neck of 4.5" and larger output pipe of 1.5" on the ER will take this flow throughput of 300gph and still permit tuning to run wet or dry. I could probably run the throughput up to 425gph, I would guess. That would be impressive!
1pm sounds good on either day for me.
fishaholic911
New member
I can make it on the 21'st
