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Unread 01/26/2018, 07:03 PM   #301
outy
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Quote:
Originally Posted by COreefgeek View Post
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.
If you would have done 1 1/4" you would have had a small river.

Here is the trick I learned, large a pipe as possible, when you can use a heat gun and bend the pipe instead of elbows or 90's

I had 1" and 9' with unions and 90's and T's and had to run at 100% to get 600-700 gph

I used the heat gun and all 1 1/4" pipe and was able to turn the pump down to 75% or 57W to get the same exact flow.

So yes, pipe size makes a huge difference here.


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Unread 02/11/2018, 01:48 PM   #302
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Looking for the size of this thread on a dcp 18000.

Appreciate it comes with fittings, but hoping to get as close 2" straight from the pump, rather than start with 1.5"

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Unread 02/22/2018, 09:14 AM   #303
arju
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hi, DCP8000 sufficient for 180g 6Ft tank? using 1inch pvc piping.

not sure to apply single or dual return on a single pump yet.

thank you


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Unread 02/22/2018, 05:24 PM   #304
Dross
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hi, DCP8000 sufficient for 180g 6Ft tank? using 1inch pvc piping.

not sure to apply single or dual return on a single pump yet.

thank you
The pump should be large enough for a 180 but you will likely be restricted to about 600-700 gph with 1" return piping. I would recommend at least 1-1/4" with two 1" returns if you want more than 4X flow.


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Unread 03/23/2018, 03:37 PM   #305
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Need an opinion on what size DCP to go with for a 29 gal with 10 gal. sump (5 gal refrugium) with 10x flow. I also want to be able to run media reactors so I have a 3 port manifold on the return along with 1” to a tee with two 3/4” returns @ 3’ head height. I’m was looking at the 5000 Lph but think that might be too much even at 65%?


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Unread 03/23/2018, 05:08 PM   #306
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I'm using a 5000 on my 40 breeder. I run the pump just under 50% with a head height of 5'. I'm getting 389 gph. The nice thing with a DC pump is being able to turn it down and if you want to slow it even further you can use a ball valve. Either way you have a good pump if you ever want to get a larger tank.


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Unread 03/25/2018, 10:18 AM   #307
PyroSteve
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Wow. Ok If you’re getting close to 400 gph @ 50% with 2 ft. more head height with the 5000, then the 4000 should be more than enough. Getting a bigger tank probably isn’t an option as my space is limited and the smaller size of the 4000 will help with the my sump layout. Thanks for the info.


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Unread 03/29/2018, 11:20 AM   #308
ryeguyy84
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Just bought a 6500, replacing my return pump and 2 MJ 1200's. The MJ1200's are throttled down half way so it's a waste of wattage. replacing 115W with 55W so I need to to last at least 9 months to pay for itself in electricity.

by the way the DCP 6500 is marked down to $60.20 on amazon. Cheaper than the 5000 and the 3000. hopefully it's the real deal.


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Unread 03/29/2018, 11:34 AM   #309
kdblove_99
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would the 6500 work for me. i was going ro get a eheim 1262. i have an older wet dry sump and the fitting that goes to thw pump is 3/4" the eheim is 1". is the part that goes from the sump to pump 3/4" or is that the bigger fitting. thanks


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Unread 03/29/2018, 01:19 PM   #310
kdblove_99
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guess what im asking is the inlet on the pump 3/4" so i could just use a 3/4" barb to connect tubing from my sump to the pump inlet?


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Unread 03/29/2018, 02:14 PM   #311
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Quote:
Originally Posted by kdblove_99 View Post
guess what im asking is the inlet on the pump 3/4" so i could just use a 3/4" barb to connect tubing from my sump to the pump inlet?
Thats what I plan on doing. The pump is supposed to be here monday. I'll let you know.

I think the pump has slip fittings, so you would need to go slip to Barb to tubing

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Unread 03/29/2018, 02:20 PM   #312
kdblove_99
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Quote:
Originally Posted by ryeguyy84 View Post
Thats what I plan on doing. The pump is supposed to be here monday. I'll let you know.

I think the pump has slip fittings, so you would need to go slip to Barb to tubing

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read on a post on this thread earlier that they come with barbed fittings now. just need to know if i can use 3/4" for my inlet and 1" return. Also can these be ran externally?


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Unread 03/29/2018, 02:42 PM   #313
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I see... I've read a few Amazon reviews that say they can be run external.

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Unread 03/29/2018, 05:02 PM   #314
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guys , which model would be good for 112 gallons total? tank is 88 gallons. it’s red sea xl 425.


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Unread 03/29/2018, 07:11 PM   #315
Orcus Varuna
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Quote:
Originally Posted by PyroSteve View Post
Need an opinion on what size DCP to go with for a 29 gal with 10 gal. sump (5 gal refrugium) with 10x flow. I also want to be able to run media reactors so I have a 3 port manifold on the return along with 1” to a tee with two 3/4” returns @ 3’ head height. I’m was looking at the 5000 Lph but think that might be too much even at 65%?


I’m running a dcp 8000 on a reefer 170 at 13% lol


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Unread 03/29/2018, 08:37 PM   #316
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I thought the DCP can only go down to 30% max


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Unread 03/30/2018, 07:48 AM   #317
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Quote:
Originally Posted by jar41 View Post
guys , which model would be good for 112 gallons total? tank is 88 gallons. it’s red sea xl 425.
Pump size and tank volume have no direct correlation. The size should be determined by head pressure you are seeking which takes into account the travel distance, pipe diameter, elbows (45/90 degree), and vertical vs horizontal.

If you plan on placing this pump in a sump right beneath the aquarium the DCT8000 would be plenty. Depend on how much flow you can get through the down pipe into the sump. Again size, travel distance, elbows come into play here as well.


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Unread 04/01/2018, 08:07 AM   #318
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Wow, I can't speak for long term reliability but this pump has some cajones. I replaced my Eheim compact 2000 which isn't a very powerfull pump but I'm running the 6500 at 35% and it's basically equal flow.

I'm going to make a manafold and replace 2 mj1200's and probably end up at 50%. That's saving like 65 watts and it's dead silent.

That's $65 a year in energy savings give or take. So far pretty happy with my $60 pump

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Unread 04/01/2018, 09:48 AM   #319
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Quote:
Originally Posted by ryeguyy84 View Post
Wow, I can't speak for long term reliability but this pump has some cajones. I replaced my Eheim compact 2000 which isn't a very powerfull pump but I'm running the 6500 at 35% and it's basically equal flow.

I'm going to make a manafold and replace 2 mj1200's and probably end up at 50%. That's saving like 65 watts and it's dead silent.

That's $65 a year in energy savings give or take. So far pretty happy with my $60 pump

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How do you figure? You are not going to get the same output from the 6500 at 50%.


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Unread 04/01/2018, 10:02 AM   #320
ryeguyy84
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I have the mj's throttled back to less than half so it's really a waste. One runs a gfo reactor and the other feeds a chaeto reactor. I may end up at 60 or more percent but still happy

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Unread 04/01/2018, 07:24 PM   #321
ryeguyy84
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Originally Posted by ksed View Post
I thought the DCP can only go down to 30% max
Yeah your right about that

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Unread 05/02/2018, 09:57 PM   #322
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Originally Posted by jason2459 View Post
It's pretty awesome even if it's max flow or head isn't 100% accurate.







I find it quieter then the waveline dc12000 when I first ran it but the waveline did quiet down a lot over a few weeks to being almost silent at 100%.

I'm impressed it can go up in 1% increments from 30% to 100%. And I really like it gives how many watts are being pulled by the pump. Killawatt is higher from the wall.


Watts sent to pump at 30%


1% increments



Here's a quick first look and going to run the pump at 100% to get a good running average so these numbers will most likely change a bit over time but not by very much.
Still running strong. Haven't touched it.


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Unread 05/03/2018, 08:59 AM   #323
ksed
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How long have you had it now?


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Unread 05/03/2018, 10:18 AM   #324
d0ughb0y
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looks like a little over a year. the quoted post is from 3/2017


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Unread 05/03/2018, 12:45 PM   #325
jason2459
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Sounds about right. It's been humming along quietly. I have a jebao return too I think is a dct model. 15000 maybe? that's been running quite a bit longer. Haven't touched it either. I'd have to go back in my journal to look at specifics.


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