Jebao DCP return pump? - Page 12

stage3-s4 · 11/29/2017, 03:51 PM

Quote:

Originally Posted by outy

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

Agreed. There are a number of ways to get a pretty close estimate of head pressure and flow rate without using a flow meter. I can tell you my DCP-7000 hits approximately 1200GPH with 3 feet of head at 100% power. Those numbers are good enough for me.

If you need tons of flow with a high head, DC pump is probably not going to be a good choice regardless of what they are rated for.

d0ughb0y · 11/29/2017, 04:25 PM

Quote:

Originally Posted by stage3-s4

Agreed. There are a number of ways to get a pretty close estimate of head pressure and flow rate without using a flow meter. I can tell you my DCP-7000 hits approximately 1200GPH with 3 feet of head at 100% power. Those numbers are good enough for me.

If you need tons of flow with a high head, DC pump is probably not going to be a good choice regardless of what they are rated for.

ok, I think you are mistaking DCS with DCP.
There is no DCP 7000, but there is DCS 7000.

when you say 3 feet, if you are not using the widest diameter supported by the pump output, then you need to add the corresponding head loss to your calculations.

outy · 11/29/2017, 05:41 PM

I only need enough return to run my ATS. so the 10000 at 9' should be plenty with cleaning up my loop

stage3-s4 · 11/30/2017, 08:01 AM

Quote:

Originally Posted by d0ughb0y

ok, I think you are mistaking DCS with DCP.
There is no DCP 7000, but there is DCS 7000.

when you say 3 feet, if you are not using the widest diameter supported by the pump output, then you need to add the corresponding head loss to your calculations.

I'm using 3/4" pipe for my output. I added some headloss for reducing fittings and such. Yes sorry I meant to say DCS-7000. My pump is dead silent as well. This is on a 40 gallon tank.

outy · 12/01/2017, 09:41 PM

I just got my dcp 10,000. Hooked it up in the sink and it went down to 10W and up no problem.

Hopefully I wont have to run it on full 80W with 8' of head pressure and needing 750gpm.

outy · 12/02/2017, 10:55 PM

Sweet ! loving the pump. Its dead silent.

Running it at 100% it was a hair less flow then the the Iwaki md55 at 100%

I'm running this pump at 70W and saving 120W 24/7 which is saving me 167 dollars a year.

If the pump last 7 months I break even

Queensreefer · 12/02/2017, 11:54 PM

Great pump. I see no need to buy an eco tech.

outy · 12/04/2017, 12:02 AM

I like the pump enough I bough the rare DCP 2500 and had to order it from China. I only found 2 that exist.

I need 300gph max for my calcium reactor circulation pump. should be able to turn it down to about 10W bit have 3 X the flow the eheim 1048

aumoenoav · 12/09/2017, 04:07 PM

Im running two DCP 18000 in series, but have anyone tried or figured out how to use 0-10V on the large pumps? The only thing missing for me is to be able to use 0-10V and it seems they dont provide it on the large pumps by some reason.

outy · 12/09/2017, 04:31 PM

Quote:

Originally Posted by aumoenoav

Im running two DCP 18000 in series, but have anyone tried or figured out how to use 0-10V on the large pumps? The only thing missing for me is to be able to use 0-10V and it seems they dont provide it on the large pumps by some reason.

Funny I put the DCP10000 pump in the sink and was able to go down to 1% and had low flow just above zero with no head pressure.

With head pressure the pump threw error codes until I turned it high enough to overcome the head pressure.

ronl · 12/16/2017, 09:46 PM

Quote:

Originally Posted by fishbox

3hrs later and this is what I came up with lol

https://youtu.be/rNJbZa2mmJI

fishbox,
I’ve been considering a DCP-4000. Do you know if a 1” threaded female adaptor would screw on to the output of the pump like in the attached picture?

outy · 12/16/2017, 11:02 PM

Quote:

Originally Posted by ronl

fishbox,
I’ve been considering a DCP-4000. Do you know if a 1” threaded female adaptor would screw on to the output of the pump like in the attached picture?

It should not. The DCP have an oring that does the sealing.

You could easily adapt any plumbing on their stock adaptors that come with the unit.

fishbox · 12/17/2017, 07:52 AM

Quote:

Originally Posted by ronl

fishbox,
I’ve been considering a DCP-4000. Do you know if a 1” threaded female adaptor would screw on to the output of the pump like in the attached picture?

No hard plumbing that I found would mount to the DCS 4000. You will need to start with some sort of tubing 1st. Then convert to hard plumbing.

outy · 12/19/2017, 04:42 PM

Cleaned up my plumbing and did 10' of 1 1/4" return pvc, and used no adaptors or gate valves, and no T's, I just used a Y instead and bent all pvc using a heat gun.

I was running at 100% and 80W for the DCP 10000, and now with these plumbing changed, I'm running 75% and or 50W of power for the same flow as before.

rsucre · 01/15/2018, 09:02 PM

I currently have a DCS 3000 in the sump for my 20 gallon display (20 gallon display + 5 gallon sump). The DCS has been great. Silent, reliable, etc. for 1.5 years. No maintenance, no cleaning. The DCS 3000 is running at the second (lowest) speed. The third speed works OK too.

I want to buy another pump to have it on hand as a spare. Actually put the new one and take the old one out, clean it and have it as a spare.

Should I get:
1. DCS-3000
2. DCP-3000
3. DCP-5000 -- I guess I would have to run it at the lowest setting. Obviously, this would be the better option in case I want to upgrade to a bigger tank later on. But I wonder if it even the lowest setting would be too much for my current setup.

Your thoughts please.

outy · 01/16/2018, 10:50 AM

If you are low on a 3000, the 5000 will be way to much.

Stay DCP

outy · 01/16/2018, 10:52 AM

Side note.

Did a kill a watt on my DCP 10000 and when it stated 50W it measured 57W so its pretty dang close.

One would need to test the kill a watt at that point, that is within the range of error on a kill a watt

rsucre · 01/16/2018, 10:52 AM

Thanks Outy. So you recommend DCP3000, the most recent model? The sine wave.

Sent from my iPhone using Tapatalk

outy · 01/16/2018, 12:21 PM

Quote:

Originally Posted by rsucre

Thanks Outy. So you recommend DCP3000, the most recent model? The sine wave.

Sent from my iPhone using Tapatalk

Yes.

I found a rare DCP 2500, had to get it out of China, works perfect on my calcium reactor on it slowest setting. measured 6.9 W on lowest setting.

But you may not even need a back up pump, and if you get the dcp 3000 and ever upgrade tank size, you will have 2 small pumps.

rsucre · 01/16/2018, 12:38 PM

Quote:

Originally Posted by outy

Yes.

I found a rare DCP 2500, had to get it out of China, works perfect on my calcium reactor on it slowest setting. measured 6.9 W on lowest setting.

But you may not even need a back up pump, and if you get the dcp 3000 and ever upgrade tank size, you will have 2 small pumps.

Thanks for the feedback. Just ordered the DCP 3000 on Amazon for $63. When I get it, I will swap my DCS 3000 with the new one, clean it in vinegar solution and keep it as backup.

ksed · 01/16/2018, 12:41 PM

Quote:

Originally Posted by outy

Side note.

Did a kill a watt on my DCP 10000 and when it stated 50W it measured 57W so its pretty dang close.

One would need to test the kill a watt at that point, that is within the range of error on a kill a watt

No need. It’s most likely giving you a pretty accurate reading. If you have a AC pump , with 0 head you can get a rough idea. There are no loses with the AC. You could try to confirm it with the AC pump.
Typically a power supply has a 10% loss , which falls very close to your results.

outy · 01/16/2018, 02:37 PM

Quote:

Originally Posted by ksed

No need. It’s most likely giving you a pretty accurate reading. If you have a AC pump , with 0 head you can get a rough idea. There are no loses with the AC. You could try to confirm it with the AC pump.
Typically a power supply has a 10% loss , which falls very close to your results.

Thanks bud! I read up on kill a watts and on lower wattages they said accuracy was not the best.

Its cool that with 8 -9' of head pressure that the pump came close to its visual rating

outy · 01/16/2018, 02:38 PM

Quote:

Originally Posted by rsucre

Thanks for the feedback. Just ordered the DCP 3000 on Amazon for $63. When I get it, I will swap my DCS 3000 with the new one, clean it in vinegar solution and keep it as backup.

Great idea, I didn't know the original was a DCS, this one should be lower wattage and less vibrations

My 2500 is dead silent and no vibrations at all on its low setting

rsucre · 01/16/2018, 03:03 PM

Quote:

Originally Posted by outy

Great idea, I didn't know the original was a DCS, this one should be lower wattage and less vibrations

My 2500 is dead silent and no vibrations at all on its low setting

Thanks!

COreefgeek · 01/26/2018, 06:54 PM

I had DCP 15000 and with 3/4 pvc pipe. going about 10ft up and 6 ft over. I could only get a trickle out of my return at the tank with pump going 100%. I returned it. I assume my pipe is too small and restricting all flow.
Im considering getting the DCP 18000 and changing my return to my tank to
1 1/4 in pvc or 1 1/2 in.
Any help is appreciated on this one.

01/26/2018, 06:54 PM	#300
COreefgeek Registered Member Join Date: Dec 2014 Location: Denver Posts: 2	I had DCP 15000 and with 3/4 pvc pipe. going about 10ft up and 6 ft over. I could only get a trickle out of my return at the tank with pump going 100%. I returned it. I assume my pipe is too small and restricting all flow. Im considering getting the DCP 18000 and changing my return to my tank to 1 1/4 in pvc or 1 1/2 in. Any help is appreciated on this one. __________________ Colorado Reef Geek

11/29/2017, 05:41 PM	#278
outy Moved On Join Date: Oct 2004 Location: auburn CA Posts: 4,021	I only need enough return to run my ATS. so the 10000 at 9' should be plenty with cleaning up my loop

12/01/2017, 09:41 PM	#280
outy Moved On Join Date: Oct 2004 Location: auburn CA Posts: 4,021	I just got my dcp 10,000. Hooked it up in the sink and it went down to 10W and up no problem. Hopefully I wont have to run it on full 80W with 8' of head pressure and needing 750gpm.

12/02/2017, 10:55 PM	#281
outy Moved On Join Date: Oct 2004 Location: auburn CA Posts: 4,021	Sweet ! loving the pump. Its dead silent. Running it at 100% it was a hair less flow then the the Iwaki md55 at 100% I'm running this pump at 70W and saving 120W 24/7 which is saving me 167 dollars a year. If the pump last 7 months I break even

12/02/2017, 11:54 PM	#282
Queensreefer Registered Member Join Date: Dec 2017 Posts: 50	Great pump. I see no need to buy an eco tech.

12/04/2017, 12:02 AM	#283
outy Moved On Join Date: Oct 2004 Location: auburn CA Posts: 4,021	I like the pump enough I bough the rare DCP 2500 and had to order it from China. I only found 2 that exist. I need 300gph max for my calcium reactor circulation pump. should be able to turn it down to about 10W bit have 3 X the flow the eheim 1048

12/09/2017, 04:07 PM	#284
aumoenoav Registered Member Join Date: Apr 2017 Posts: 29	Im running two DCP 18000 in series, but have anyone tried or figured out how to use 0-10V on the large pumps? The only thing missing for me is to be able to use 0-10V and it seems they dont provide it on the large pumps by some reason.

12/19/2017, 04:42 PM	#289
outy Moved On Join Date: Oct 2004 Location: auburn CA Posts: 4,021	Cleaned up my plumbing and did 10' of 1 1/4" return pvc, and used no adaptors or gate valves, and no T's, I just used a Y instead and bent all pvc using a heat gun. I was running at 100% and 80W for the DCP 10000, and now with these plumbing changed, I'm running 75% and or 50W of power for the same flow as before.

01/15/2018, 09:02 PM	#290
rsucre Registered Member Join Date: May 2015 Posts: 169	I currently have a DCS 3000 in the sump for my 20 gallon display (20 gallon display + 5 gallon sump). The DCS has been great. Silent, reliable, etc. for 1.5 years. No maintenance, no cleaning. The DCS 3000 is running at the second (lowest) speed. The third speed works OK too. I want to buy another pump to have it on hand as a spare. Actually put the new one and take the old one out, clean it and have it as a spare. Should I get: 1. DCS-3000 2. DCP-3000 3. DCP-5000 -- I guess I would have to run it at the lowest setting. Obviously, this would be the better option in case I want to upgrade to a bigger tank later on. But I wonder if it even the lowest setting would be too much for my current setup. Your thoughts please.

01/16/2018, 10:50 AM	#291
outy Moved On Join Date: Oct 2004 Location: auburn CA Posts: 4,021	If you are low on a 3000, the 5000 will be way to much. Stay DCP

01/16/2018, 10:52 AM	#292
outy Moved On Join Date: Oct 2004 Location: auburn CA Posts: 4,021	Side note. Did a kill a watt on my DCP 10000 and when it stated 50W it measured 57W so its pretty dang close. One would need to test the kill a watt at that point, that is within the range of error on a kill a watt

01/16/2018, 10:52 AM	#293
rsucre Registered Member Join Date: May 2015 Posts: 169	Thanks Outy. So you recommend DCP3000, the most recent model? The sine wave. Sent from my iPhone using Tapatalk