Highest pressure submersible pump

[karimwassef]

I'm using it on a dual Beckett air injector



Here it is with the old pump



and here it is with the pressure pump



It's not an objective test - I really need to measure the air draw with the different pumps to know... but still thought I'd share.

[jason2459]

Originally Posted by karimwassef

Thanks Slief. I don't doubt it. But the poor need bread too

I didn't check the power consumption, but the controller provides a power setting and I set it to max = 130W. I don't have any confirmation what it actually draws. I'll put it on an Apex outlet and check.

That's full power draw at 100%. Mine at 100%is showing 128-129 on the controller being sent to the pump and killawatt shows 148-149 watts and apex shows 147 watts pulled from the outlet. The dual Beckett setup will most likely have less head pressure then my 3/4" mazzei and it shows.

I'm very interested in what your air draw is. I'm about to swap out my mazzei to test out a Beckett with the dcp18000 with the mvx .

[laserjim]

Originally Posted by jason2459

Nice job. Exactly what I have plans to do this summer with several pumps and a flow meter testing flow at different heights and finding max head cut off.

FWIW, I've been using the dcp 18000 on my MTC MVX mazzei venturi skimmer and have found it to handle the head pressure quite well. Very impressed with the pump.

Flow has been around 300gph and watts drawn around 147watts and pulling around 28 to 30 scfh of air at 100%. So if not pulling air the gph would be higher.

Hi Jason, Question for you, how tall is your MTC, Im looking for a DC pump to run my 60 inch life reef mazzei skimmer. I tried the Vectra L1 and was only pulling 10 scfh, its rated at 3100gph I think. I had to go back to the 150ps panworld, which is way to loud ! How do you think the Jebao would do ?

[jason2459]

Originally Posted by laserjim

Hi Jason, Question for you, how tall is your MTC, Im looking for a DC pump to run my 60 inch life reef mazzei skimmer. I tried the Vectra L1 and was only pulling 10 scfh, its rated at 3100gph I think. I had to go back to the 150ps panworld, which is way to loud ! How do you think the Jebao would do ?

I'm running a DCP 18000 on my MTC MVX 36" with quick change head which just got an extension added making it just over 42". I've been very impressed with it and it has close to 30' head capability. Another member tested the 30' claim and hit 29' with a few inches to spare so it seems true to it's rating.

Minus the Abyzz and pressure rated external pumps I think its your best option

[laserjim]

Originally Posted by jason2459

I'm running a DCP 18000 on my MTC MVX 36" with quick change head which just got an extension added making it just over 42". I've been very impressed with it and it has close to 30' head capability. Another member tested the 30' claim and hit 29' with a few inches to spare so it seems true to it's rating.

Minus the Abyzz and pressure rated external pumps I think its your best option

So your pulling 30 scfh at 42 inches ? Can it be used external ? Thanks for your input,

[jason2459]

Originally Posted by laserjim

So your pulling 30 scfh at 42 inches ? Can it be used external ? Thanks for your input,

Yep around that. The taller the skimmer the more head pressure will be put on the pump reducing flow and air draw. Like going from 37.5" to 42.5" dropped flow by close to 8-10gph and air draw by about 1 scfh. I doubt it's linear. These are also 3/4" mazzei injectors which are pretty restrictive and put a lot of head pressure on the pump.

With the 684 mazzei at 42" was about 280-290 gph and around 28-29scfh.

With the 784 mazzei at 42" is about 390-395 gph and around 32scfh so far.

All at 100% which at the wall outlet is about 150watts. These do not drop in watts pulled like an AC pump when under pressure.

[jason2459]

Oh and yes, it is supposed to be able to run external. It is a jebao so YMMV. lol

Just make sure to have a backup pump ready. I have two.

[karimwassef]

Originally Posted by jason2459

Oh and yes, it is supposed to be able to run external. It is a jebao so YMMV. lol

Just make sure to have a backup pump ready. I have two.

+++1

and I keep backup and multiple loops. Still far better value.

[ksed]

Perhaps a silly question but a Pan World 150ps uses 180 watts and has 28 ft head pressure.
We know that the wattage drops on AC pump therefore it's probably going to be less than the Jabao's 150 watts.
How are the DC pumps more energy efficient?

[Harry Muscle]

Originally Posted by ksed

Perhaps a silly question but a Pan World 150ps uses 180 watts and has 28 ft head pressure.
We know that the wattage drops on AC pump therefore it's probably going to be less than the Jabao's 150 watts.
How are the DC pumps more energy efficient?

At higher heads DC pumps are most likely less efficient than AC pumps ... but marketing does a good job at making us all think DC pumps are always more efficient.

Thanks,
Harry

[jason2459]

Most people don't run their DC pumps at 100%. That's the catch right there. If a person plans to run a DC pump at 100% vs any kind of significant head pressure then may as well get an equivalent AC pump or get a bigger DC pump.

The benefit to me is that I can run these internally. A benifit to others maybe they are quiter then the typical external panworlds of the world.

But trying to compare a DC pump to something like a panworld it's kind of hard.

At 150watts with the dcp18000 you get 4755 gph at 0 head

At 180watts with the panworld 150ps you get 1100gph at 0 head

150ps with 28' head
Dcp18000 with 29-30' head.

So, the interesting thing would be at what head pressure does the panworld 150ps start drawing less watts (assuming it will) and at that point what is the flow rate.

[ksed]

Jason, another reason that I don't understand is why run a pump at say 80% when you can purchase an AC pump matched to your required flow . So if you purchased a DC pump which runs at 150 watts but run it at 80% , you are definitely not going to get the 30 ft head pressure, it will be less. Therefore just purchase a pump with the required flow and head pressure. Now based under certain circumstances such as closed loop, where's one wants to alternate flow is a different situation. Being submersible and perhaps less noise is another. But if one can match the flow and head pressure require and run at constant speed then there's no reason DC is required nor more energy efficient. JMO

[jason2459]

Many use a valve of some type on their return pumps scaling them back. The DC pump just makes it easier (especially if controllable by like an apex) and same concept.

[jason2459]

Like something I can't do easily with an AC pump is with my waveline apex ready pump I would control its power based on some switches in my skimmate locker.

Normal speed at 100%. If first switch is opened then slow down to 80%. If top switch is opened then shutdown.

Or with my UV I'm playing with and the flow sensors. I have my UV prefiltered and have flow set to 650gph at 50% power. As the prefilter clogs up reducing flow I have my apex turn up the power. If flow < 640 then 60%. If flow < 630 then 70%. If flow < 620 then 80%. If flow < 610 then 90% . If flow < 600 then 100% if flow < 550 then off.


So, there's certainly certain advantages some DC pumps have. No, I don't believe efficiency is one of them except in certain circumstances but not all.

[karimwassef]

I needed a submersible pump.

[karimwassef]

Still working great!

[Horace]

Man i hope i didnt bork myself. I JUST bought a SP6 hoping it would handle 12 head or so, and it looks like its barely at the limit. I am guessing the flow is going to be crap. Which really sucks because I would then have two pumps (both still in the box), a DC10000 and a Fluval SP6 that are useless......gahhhhh

Like you, I really dont want to run them in series either. But that MAY be what I am forced to do.

[karimwassef]

Sell them and get a different pump

[karimwassef]

By the way, I think Fluval makes an awesome pump. It's the only AC pump left in my system.

[Horace]

turns out the jebao dominates the Fluval SP6 by at least 40% when at 12ft head, but its still not enough for a basement build. I really dont want to buy a dcp18000 and depend on that as my main pump. I may just scrap the basement idea and go with the fluval sp6, which will provide plenty of flow at only 4ft head.

[karimwassef]

I get multiple jebaos and run separate lines
that gives me the insurance I need and the pressure

If you don't need to go submersible, there are plenty of other external high pressure pumps

[jason2459]

Crazy not to go with the basement sump. I have been running a dct15000 for at least a year now on my return. I have a dcp15000 or a waveline dc12000 apex ready as a backup.

I have a dcp18000 doing great on my skimmer and have that dcp 15000 for a back or a waveline dc12000 apex ready version.

Basically, get the cheap pump and a spare. Use both at the same time like karim said or just keep one spare like I do. If my return stops I have plenty of flow with out it in the tank. And plenty of flow in my sump with out it. So, I'm not worried if it goes out.

[GQsmooth]

gonna pick the 18000 to use as a backup. BTW, what is the outlet size?

[karimwassef]

I don't remember. I'd have to take it out to look.

I think it's 2"

[jason2459]

It comes with some slip adapters too.

Except for at least mine the size wasn't exactly as printed on the fitting...

Originally Posted by jason2459, post: 3605185, member: 56516

I'm not sure China understands inches. lol

I'm trying to get to 1" and looks like the 1.5" included fitting is 1.5" on the outside but seems slightly bigger.

1 1/2" coupler doesn't fit on the 1 1/2" slip fitting included. But a 1 1/4" bushing fits inside.

So, that lines up with standard schedule 40 size for 1 1/4" pvc with outside diameter around 1.6"

So weird....

Originally Posted by jason2459, post: 3605930, member: 56516

Getting ready to go on later tonight

I used abs to pvc transition cement


Been running awesomely