Jebao dc12000 plumbing

[GatorsUF]

Correct me if I'm wrong, but the output of the dc12000 is 1.5". I am currently plumbed with a 1" return line. Should I upgrade it to 1.5" or can I just use a 1.5">1" bushing off the pump. It is for a 90 gallon tank and the pump will be feeding my refugium as well.

[scuzy]

You'll reduce the flow a bit but I don't see why not.

[james1990]

i would use the reducing bushing

[mcgyvr]

The correct way is to use 1.5" anything less is a restriction

[GatorsUF]

Seems like some mixed opinions. How about 1.5" from the pump, 1" to the fuge, and I'll split the plumbing near the top with a 1.5">1" wye to feed both sides of the tank. Will that be better?

[mcgyvr]

Seems like some mixed opinions. How about 1.5" from the pump, 1" to the fuge, and I'll split the plumbing near the top with a 1.5">1" wye to feed both sides of the tank. Will that be better?

Again.. 1.5" pipe all the way.. anything less is a drastic restriction.. No point in buying a 3000GPH pump if you are just going to CHOKE it..

Without getting into any details/friction losses,etc.. blah blah blah
1" is rated for around 1500 GPH..
1.5" is rated for around 3500 GPH..

[GatorsUF]

1.5" all the way it is. Thanks for the help

[mcgyvr]

Oh wait... Didn't read your post clearly..
You can split it with a Y or T.. You just don't want any sections that take 100% of the flow reduced to 1".. Going 1.5 in to 2 x 1" will still be be a slight restriction too though.. 1.5" to 2 x 1.25" would be better..

[Ron Reefman]

Again.. 1.5" pipe all the way.. anything less is a drastic restriction.. No point in buying a 3000GPH pump if you are just going to CHOKE it..

Without getting into any details/friction losses,etc.. blah blah blah
1" is rated for around 1500 GPH..
1.5" is rated for around 3500 GPH..

Where did you get these numbers? Unless you know how much pressure the pump can create, you can't really predict flow rates, can you?

It's one thing if you are talking about gravity fed drains and flow rates, we all have the same basic gravity. :beer:

But when it comes to pumps, different pumps push water with different impellers at different speeds with different build tolerances and therefore can push different heads and different flow rates through smaller pipes. Why can one 1000gph pump push just a 10' head and another 1000gph pump can push a 25' head? Because it's built with better tolerances and can deal with back pressure better. The same thing is true with pushing flow rates through a restricted pipe. Some will lose a lot of flow and some will push the water through at higher speed and maintain a lot of the original gph flow rate.

[jkcoon]

I bought a dc1000 II and originally hooked it up to my 1" plumbing and got real bad microbubbles. Once I replumbed to 1.5" in and out, the microbubbles went away.

[james1990]

I didn't think reducing right from the pump would restrict that much.

so what do I do when my 150gal deep blue tank has two 3/4 return bulkheads and I'm using the dc12000?

[Hodge1995]

I have a dc12000 and reduced it with no issues. I just reduced the speed on the controller by a notch.I have also ran wide open with no issues. The pump comes with a reducer.

[aquaenthusiast]

I have a dc12000 and reduced it with no issues. I just reduced the speed on the controller by a notch.I have also ran wide open with no issues. The pump comes with a reducer.

i have a dc9000, and plan on reducing the 1.5" output to 1" , I haven't done it yet though, can anyone confirm that pvc npt's will screw/ thread correctly to the pump? I'm looking at the pump right now, and the threads appear to be nice and looks like they will work just fine with american npt's.

[aquaenthusiast]

Again.. 1.5" pipe all the way.. anything less is a drastic restriction.. No point in buying a 3000GPH pump if you are just going to CHOKE it..

Without getting into any details/friction losses,etc.. blah blah blah
1" is rated for around 1500 GPH..
1.5" is rated for around 3500 GPH..

this pump is dc variable so "choking" shouldn't be a big issue

[kikoreefer]

I don't think it will be an issue but if you want max GPH then you need to used the specified pipe size. That being said if you are going to use the pump to run accessories then the 1" will be fine and the split flow will function for your reactors and what not.

[FlyPenFly]

Max gph on a dc12000 in a 90 gallon is quite a lot.

[GatorsUF]

Thanks for all the help guys. I think I'm going to do 1.5" and use a 1.5" > 2x 1" true wye to split the flow to both sides.

[mcgyvr]

Thanks for all the help guys. I think I'm going to do 1.5" and use a 1.5" > 2x 1" true wye to split the flow to both sides.

Smart move.. ;)

[Scffvariable]

i have a dc9000, and plan on reducing the 1.5" output to 1" , I haven't done it yet though, can anyone confirm that pvc npt's will screw/ thread correctly to the pump? I'm looking at the pump right now, and the threads appear to be nice and looks like they will work just fine with american npt's.

Yes the standard NPT PVC fittings fit.

Depending on your drains on the 90g, might be hard to handle the pump at max flow.

[GatorsUF]

It will be running the fuge as well. I don't plan on running it at max power. I just didn't want to cause any premature failures due to back pressure

[LobsterOfJustice]

I got a DC12000 and attached it to my existing 1" plumbing from my last return pump. I've got the typical few feet of head pressure, but I don't feel like I'm getting anywhere near max flow out of it. I was expecting to have rocks blowing over, overflow can't keep up, etc, but it's really quite manageable. I've got the apex controlling the flow and I want to be able to get the max flow out of it if I can. I'll probably swap out the plumbing for 1.5" eventually.

[GatorsUF]

I figured putting a 1.5" > 2x 1" true wye would cut down on back pressure. 2x 1" pipes going to each corner seemed better than a single 1.5" return in my train of thinking.