Jebao DCP return pump?

[Cheapreef]

Originally Posted by Oeste

So all pumps are the same dimensions? That's really odd
Thx

Yes apparently they use the same casing with different internals. I'm guessing that makes them far cheaper to produce.

[Oeste]

Originally Posted by Cheapreef

Yes apparently they use the same casing with different internals. I'm guessing that makes them far cheaper to produce.

Interesting, thx bro

[lvgmman]

what is the "closest to actual" outlet sized slip adapter for the 18000? as in what PVC can use use for the least restriction? The answer bounces around from 1.25" to 2" in here. i went off of what amazon said and ordered 1" (since it said 1.25" or 1") seems like its far from true. I probably should have ordered the pump before ordering the PVC but oh well too late now

[got2lb]

A piece of 1.5" pvc pipe will slide into the adapter that it comes with. That's the biggest adapter provided.

[lvgmman]

Originally Posted by got2lb

A piece of 1.5" pvc pipe will slide into the adapter that it comes with. That's the biggest adapter provided.

thanks.... now i have a bunch of 1" stuff to return to MarineDepot lol dang it

[outy]

If I wanted 900GPH at 9' head would you run the 10000 or larger?? I have seen the head flow charts, but want to hear from actual users.

[outy]

Found this reading amazon reviews

for the 10000, At 44 watts apex flow meter states 390GPH. At max wattage it was 580GPH

using 1" pipes, which I am. Looks like I need a larger size.

[stage3-s4]

Originally Posted by outy

Found this reading amazon reviews

for the 10000, At 44 watts apex flow meter states 390GPH. At max wattage it was 580GPH

using 1" pipes, which I am. Looks like I need a larger size.

I found that flow meters significantly reduce the flow of these pumps. I have a DCS 7000 connected to a 1" flowmeter with maybe 3 feet of head and the max I can get is about 780GPH plus or minus 5%. It should be closer to 1200GPH without the flowmeter.

[outy]

Originally Posted by stage3-s4

I found that flow meters significantly reduce the flow of these pumps. I have a DCS 7000 connected to a 1" flowmeter with maybe 3 feet of head and the max I can get is about 780GPH plus or minus 5%. It should be closer to 1200GPH without the flowmeter.

Thank you.

Even if I ended up with 800 I would be perfectly happy.

[stage3-s4]

Originally Posted by outy

Thank you.

Even if I ended up with 800 I would be perfectly happy.

I'm using this flowmeter:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1


I'm not sure if the apex one flows better but I doubt it. You may have slightly larger head in your system than I do which is why Its lower. I would consider adding a second pump if possible and manifold them together for some extra boost.

[alemone]

Originally Posted by stage3-s4

I found that flow meters significantly reduce the flow of these pumps. I have a DCS 7000 connected to a 1" flowmeter with maybe 3 feet of head and the max I can get is about 780GPH plus or minus 5%. It should be closer to 1200GPH without the flowmeter.

Or its capacity is way overestimated by Jebao.

[dpstrand]

I replaced a Tunze 1073.040 with a DCP-10000 and with the controller set to only 51W I am getting quite a bit higher flow with it compared to the tunze. I have no idea how much head pressure I have though, probably a lot because I only have a 1/2" return due to bulkhead size. Noise level is about the same, different however with the Jaebo making a bit more of a high pitched wine compared to the Tunze low pitched rumble. Both are quiet.

[d0ughb0y]

This thread is about DCP model, which is the third generation of the pump and runs dead silent. On my DCP 5000, I know it is putting out the flow as specified using 3/4” pvc. I like the DCP series pump and highly recommend it. I believe someone here on RC tested and confirmed the higher model pump can pump water 20 feet high as per spec with video to prove it.

[outy]

Originally Posted by d0ughb0y

This thread is about DCP model, which is the third generation of the pump and runs dead silent. On my DCP 5000, I know it is putting out the flow as specified using 3/4” pvc. I like the DCP series pump and highly recommend it. I believe someone here on RC tested and confirmed the higher model pump can pump water 20 feet high as per spec with video to prove it.

Sweet, I'm down. Just ordered the dcp 10000 for 9' head application.

I can always go back to 190W if need be.


if this works out I may replace my Iwaki md 15 which is too much for my calcium reactor circ pump. maybe do a DC 2000 dialed back 1/2" application

[d0ughb0y]

The pipe size used is a major factor in the amount of flow. The larger the pipe diameter, the less work the pump has to do to generate the same amount of flow.

unlike AC pump, which lowers flow as you restrict the pipe size, DC pump can still increase flow by increasing the power.
I initially used 1/2" pipe and got the flow I want, about 500gph. Then switched to 3/4" pipe and can see the pump runs at a lower power to generate the same flow.

[outy]

Originally Posted by d0ughb0y

The pipe size used is a major factor in the amount of flow. The larger the pipe diameter, the less work the pump has to do to generate the same amount of flow.

unlike AC pump, which lowers flow as you restrict the pipe size, DC pump can still increase flow by increasing the power.
I initially used 1/2" pipe and got the flow I want, about 500gph. Then switched to 3/4" pipe and can see the pump runs at a lower power to generate the same flow.

I have all 1" but ill be taking out 2 X 90 degree bends and 3' of lateral pipe.

I may make or order a 120 degree 1" Y ,, they are not easy to find instead of a T fitting I have now up higher as explained below.

The 1" goes through the floor and up a 2' into a T with 2 3/4" pipes delivering to each side of the tank. May only slow it down a hair.

[stage3-s4]

Originally Posted by alemone

Or its capacity is way overestimated by Jebao.

This is certainly not the case. If you ever looked into one of the flowmeters you will see just how restrictive they are.

I have used these pumps without flowmeters before and they are very powerful and come pretty close to their ratings.

[alemone]

Originally Posted by stage3-s4

This is certainly not the case. If you ever looked into one of the flowmeters you will see just how restrictive they are.

I have used these pumps without flowmeters before and they are very powerful and are come pretty close to their ratings.

I have this pump and 5 flow meters. There is no way for a flow sensor not to restrict the flow but I have doubted the estimates as
well. Also, I have never seen anybody confirming the flow ratings as, of course, it's tough to do that without a flow meter.

[d0ughb0y]

can you confirm you are using DCP pump (and not DCS/DCT/DC) and show your test configuration.

The way another RC person tested is using a pvc pipe going straight up a certain length. I think the pvc size is the max size that fits the pump (I think 1 1/2" if I am not mistaken). Of course anything added like elbow, smaller diameter pipe, etc. adds to the head height. Even horizontal run of pipe adds to head height due to friction loss.

[dpstrand]

Originally Posted by d0ughb0y

This thread is about DCP model, which is the third generation of the pump and runs dead silent. On my DCP 5000, I know it is putting out the flow as specified using 3/4” pvc. I like the DCP series pump and highly recommend it. I believe someone here on RC tested and confirmed the higher model pump can pump water 20 feet high as per spec with video to prove it.

Sorry, typo. I have the DCP not DCS. I will edit my post. The intent of my earlier typo'd post is to say that I am happy with it so far.

[d0ughb0y]

is it a DCP 5000 or above?
DCP has no whining noise like the previous generation.

[stage3-s4]

Originally Posted by alemone

I have this pump and 5 flow meters. There is no way for a flow sensor not to restrict the flow but I have doubted the estimates as
well. Also, I have never seen anybody confirming the flow ratings as, of course, it's tough to do that without a flow meter.

I'm just using logical assumptions is all. Based on that I think their ratings are fairly accurate is all am I saying.

[alemone]

Originally Posted by stage3-s4

I'm just using logical assumptions is all. Based on that I think their ratings are fairly accurate is all am I saying.

And I don't know if they are not. I like the pump but Chinese companies are notorious for false claims. I would be happy to see some evidence one way or another. Capacity and head pressure specs are related but not the same.


Sent from my iPhone using Tapatalk Pro

[d0ughb0y]

There was a major fiasco with tunze several years back where ecotech published a study showing tunze claims for flow is over rated. tunze never denied it.

[outy]

Originally Posted by alemone

I would be happy to see some evidence one way or another.

I can measure with a 5 gallon bucket and get an accurate gpm rating with no flow meter.

Anyone can measure with a 1 gallon bucket and get a gpm number.

1 sec is 60gpm
2 seconds is 30gpm
3 sec is 20gpm
4 seconds is 15gpm
5 seconds 12gpm
6 is 10