New wavemaker- awesome!!!

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Lunchbucket- I was trying (and not very well) to make the point that you can squeeze quite a bit of flow through two 3/4 inch pipes with a pump that is not pressure rated.
 
brentp - thanks...you would have gotten there :D

hmm iwaki will be nice i think..prolly more than i need but SPS should like it. i kind of WANT to hook the Blueline up too on a constant running closed loop....LOTS-O-FLOW

Lunchbucket
 
ref pressure rated pumps,

I think you need to define what use you have for the pump and then compare the head curve to your given requirement. Its not always true that a pressure rated pump will move more water in all set ups. If you look at the iwakis the non pressure rated version moves considerably more water up to a specific head and then the pressure rated unit is more suitable, but may use more power.

On a closed loop I would expect a non pressure rated pump to move more water.

Most pumps are pressure rated by changing the impeller and its housing, flow pumps tend to have large open impellers while presure rated unit have thiner and possibly semi enclosed blades to increase water pressure.

thats my take on it always check the head loss info on any pump, and know what you want to use the pump for.
 
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MickeyDee

I have the same pump and decided to go with the HD 4-way. I already have 2 x 1" Seaswirls on the main return, so the extra outlets of the 8-Way were not needed. Also I liked the idea of the increased port size of the HD 4-way. I have not completed plumbing the thing yet so I can't give you an estimation on flow. I can tell you that most area reefers that I talk to think that I'm crazy with this pump on closed loop as well as another for the main return on my 90. The main return will also feed a chiller and refugium so flow rate is not as much as it appears. I figured that for the closed loop, I can just add additional outputs (Tees off the main lines) into the tank until the velocity at any one outlet is reduced to an acceptable rate. I plan on running 1.5" all the way from the HD 4-way in to the tank out through 90's and 45's . If ABS does not come in 1.5" then I'll use reducing tees to 1". If my plans go smoothly this weekend, I'll have picture of the set-up and possibly a firsthand report on flow rate. HTH
 
Sequence Dart info:

The Dart is from the new ReefFlo series by Sequence. This is a low head Pressure pump capable of 600-3600GPH. Uses an 1/8 hp low speed (1725 RPM) motor. Max Watts 160. Quiet operation, low heat transfer. Heavy Duty Silicon Carbide Saltwater Seal. Supercool Translucent PVC Housing makes for easy checking inside the impeller housing.

Dart-Curve.gif


Adobe PDF file with Power vs. Consumption curves

Dart
Flow (@ 0') 3,600GPH
In/Out 2" / 1Ã"šÃ‚½"
Watts 160

StingRay
Flow (@ 0') 4,300GPH
In/Out 1Ã"šÃ‚½" / 1Ã"šÃ‚½"
Watts 350

Hammerhead
Flow (@ 0') 5,800GPH
In/Out 1Ã"šÃ‚½" / 1Ã"šÃ‚½"
Watts 370
 
Thanks for the info.. I didn't know Sequence had a new line of pumps. I have a quick question. Why does the "Dart" require a 2" inlet while the others use an 1.5" inlet??


tang_man_montreal said:
Sequence Dart info:

The Dart is from the new ReefFlo series by Sequence. This is a low head Pressure pump capable of 600-3600GPH. Uses an 1/8 hp low speed (1725 RPM) motor. Max Watts 160. Quiet operation, low heat transfer. Heavy Duty Silicon Carbide Saltwater Seal. Supercool Translucent PVC Housing makes for easy checking inside the impeller housing.

Dart-Curve.gif


Adobe PDF file with Power vs. Consumption curves

Dart
Flow (@ 0') 3,600GPH
In/Out 2" / 1Ã"šÃ‚½"
Watts 160

StingRay
Flow (@ 0') 4,300GPH
In/Out 1Ã"šÃ‚½" / 1Ã"šÃ‚½"
Watts 350

Hammerhead
Flow (@ 0') 5,800GPH
In/Out 1Ã"šÃ‚½" / 1Ã"šÃ‚½"
Watts 370
 
Dart is a pump designed off of the 750 series which are very much flow low pressure, low rpm pumps whereas the others are from the 1000 series and are a bit more pressure tolerant. I can tell you about the 750 series first hand--very good IF you plumb 'em right. They lose flow rapidly otherwise.
 
I'm running the Sequence Cimarron from azpumps. With the saltwater seal, shipped was just under $200. I'm running an 8 way on it.

I run 3" over the top of the tank (not drilled) into a 2" flex pipe into the pump. On the out I run a short peice of 1.5" to the 8 way. The out of the 8 way is 1" and I run 1" all the way up to the exit point of the pvc where it drops to 3/4". I'm running this on my 135 (6 foot) tank and I'm real happy with the results. On 4 of the outlets I run that ball pipe and it allows me to turn the outputs where I want them. These are on each side of the tank front and back.

It moves more water than all the rio 1700/2500's in my tank (I had a total of 10 P/H in my tank). Now all the P/H are all gone.

The pump is the only thing under my tank.. a page or so ago I posted some pics, and it's very quiet, I'm happy with noise level even though the pump has a fan on it.

Seeker
 
tang_man_montreal, where did you get that info? The power consumption on all of those pumps is are different from what it says on MDM's site. Here is the info off of the MDM site (MDM makes Sequence pumps).

Dart = 121 watts
Sting Ray = 259 watts
Hammerhead = 495 watts
 
Travis...

I got that info from a Sequence supplier here in Canada. It's quite strange that the info you have differs from mine. I'll have to look into that.
 
Seeker:

Thanks for the additional info. Do you have the flow coming out of two openings at a time or more? Do you have a sand bed and does it get blown around? Do you need to keep corals far enough away from the outlet to avoid blowing them over?

Sorry for all the questions, but it seems like your setup is very close to what I'm looking at.

thanks.
Mickey
 
Interesting design,I too would like to know the cost.
but I like the idea of NOT haveing power heads in the display tank.There is an interesting designed wave maker I had seen on the marine depot site that is a unit that sits inside the tank and pulls in 6 gallons,at the same time pushes 6 gallons createing a realistic ocean current but the down side is that you have to have this large unit inside the tank.IÃ"šÃ‚´m looking for the cleanest most efficient way to create wave movement.Thanks
 
anyone know if they make 3way PVC fittings in 3/4". NOT a tee...but if you took a tee and crimped the two opposite holes closer to eachother so they are NOT 180 but 90degrees? i have seen them before but couldn't find them in town. anyone know where to get??

Lunchbucket
 
Lunch, try a pool and spa place, those are specialty fittings. or just glue an elbow on the end of a tee:D
 
Couple things I would like to add...

First I spoke with one of the engineers at work, I have heard many people say that on a closed loop, the gravity on the suction side of the pump will equalize the head pressure the pump must push against. That is incorrect, true for every28"(?) water will have 1psi of pressure, but you must consider that your pump is pushing water up faster than what gravity will it down. So you must still consider how high the pump will push.

Second I was about to buy a sequence pump from AZponds, but first I called Sequence Pumps directly and spoke with them. Yes the pumps from AZ ponds can come with the Salt Water seal, however it does not come with the salt water shaft (pvc coated vs. steel), or the salt water hardware (higher grade of stainless) Sequence straight out said, "I would not buy a pump for a salt water application from a pond supply store".

FWIW
 
Lunchbucket: Are you looking for a side outlet 90's? If so, go here and scroll down to the first listing. I order from them all the time and they are super fast at getting orders out. Pretty much have everything you could want too.

Joseph
 
David P,
The static head (equalizing level when the pump is off- ie closed loop is only friction head) is there whether the pump is running or not. If the pump was pushing water out faster than it drew it in, it'd be cavitating.
 
MickeyDee said:
Seeker:

Thanks for the additional info. Do you have the flow coming out of two openings at a time or more? Do you have a sand bed and does it get blown around? Do you need to keep corals far enough away from the outlet to avoid blowing them over?

Sorry for all the questions, but it seems like your setup is very close to what I'm looking at.

thanks.
Mickey

Yes, I have two ports running at the same time. I don't have a sand bed but if I did, I would have to make sure the exit ports don't point too far down at all, there's a lot of water coming out of the ports. For a while, I had a port pretty close to a acro colony, it rocked the colony when it turned on/off.

Seeker
 
DavidP. thanks for the info on the Sequence Pumps. Too bad I already ordered mine and received it two weeks ago.

Wonder if it's too late to send it back since it's been sitting in the box.

Mickey
 
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