Good, Quiet 1000 gph Pump for Closed Loop?

[tkeracer619]

I have a dart, its silent, it flows lots of water, but it is on a 150. I also have lots of bends and a Oceans Motion super squirt for changing currents. Make sure to get a large strainer, they flow a lot of water.

On A 90g you would be sitting pretty with a snapper.

BTW: you won't regret your choice of pumps. Silent and will save you some money in electricity bills. Plus it doesnt really add that much heat to the tank, I didn't notice any real changes with temps.

Oh and so its easier here is theOM Squirts Website

 

[stereomandan]

Thanks guys!

If a snapper will do it, then I'm all set.

I don't want an OM right now, but I like the idea.

Dan

 

[Liquid Hobby]

I'm a little late to the game here, but it's my understanding that a CL does not have head loss. It's the plumbing and elbows that restrict flow.

 

[SDguy]

That's correct. There is no loss due to height travelled. Only friction from the pipes, and elbows, etc.

 

[stereomandan]

Ah yes, I should have thought that through. No head pressure, just backpressure from the pipe and bends, and suction losses from the same thing.

Dan

 

[antonsemrad]

Someone correct me if I am wrong... but I think it goes like this. A standard 1.5" elbow is equal to about 4 feet of pipe; long elbows, sweep, and 45's are equal to about 2' of pipe; straight through a "t" about 3' of pipe and a 90 turn through a T about 9' of pipe. At 1.5, figure 15 feet of head per 100' of pipe. (50gpm) At 30gpm figure 6' of head per 100'. I don't exactly know what this means when you divide it among 6-8 3/4" flows, but I do know that sweeps an 45's work better than 90's. And yes, I see now that the dart is made by sequence, and gets good press. The Sweetwater is another option. I also read that I dosn't harm these pumps to "dial them back", however it can cut into efficiency when one looks at $$ per gallons pumped per hour. Adding elbows and T's has the same effect as a ball valve, or head hight. I just use the stream pumps that are penny pinchers on electricity, but have wicked flow that can be tricky to manage. It seems to me that a CL like what you are doing would be alot more "ajustable". Good luck with the pluming, lol. I would like to know how this turns out for you. (pics would be great)
This post seems kind a confusing to me, but I hope that there is somthing usefull in here.

Oh and BTW Appleton is a great place to live.

 

[stereomandan]

<a href=showthread.php?s=&postid=8155894#post8155894 target=_blank>Originally posted</a> by tkeracer619
Make sure to get a large strainer, they flow a lot of water.

Is a single 2" strainer big enough? I hope so, otherwise I might run out of room.

I think I'll get the 2" intake screen shown here.
http://www.reefexotics.com/reeflo.htm

Dan

 

[Ah64av8tor]

The quietest pumps there are bar none is the Poseidon Series. The PS4 is rated at 1225 gph so at a 4 foot head and through in a few elbows you are in your 900gph range. I have used them for years you can not hear them run! I have had one on a 65 and it rocks the tank. $159 from marine Depot you can check the specks you'll not find one with less dbs. http://www.marinedepot.com/aquarium_pumps_poseidon.asp?CartId=


"The Poseidon Series water pumps are highly energy efficient and ultra-quiet (less than 30 db)."

"Sequence pumps installed near areas of relaxation and entertainment generate minimal noise levels For example, the 1/4 H.P. unit has 52 dB noise level at 10`. A normal conversation is 60 dB for reference."

52 dB noise level at 10` so it will be like someone talking in your Living room all the time.
How noisy is it when you are standing there with your face pressed against the glass like I am most of the time?

 

[stereomandan]

Thanks for the reply! I agree with your response.

I bought the Sequence Snapper though, and it has been great! It is behind the wall on a closed loop, so the noise is extremely minimal. The pump is fairly quiet to begin with, but put it behind a wall and it's almost silent. A whisper can easily be heard right next to the tank. If the pump was under the stand, it might be too loud for me though, but easily acceptable for a lot of people.

As my user name implies, I'm very sensitive to the acoustical side of things.

Dan

 

[tkeracer619]

that strainer will be fine. I use a 2" strainer.

 

[stereomandan]

<a href=showthread.php?s=&postid=8286266#post8286266 target=_blank>Originally posted</a> by tkeracer619
that strainer will be fine. I use a 2" strainer.

Yeah, the 2" strainer seems to work great, as long as it's far enough under the surface. Any closer than about 1" to the surface and the suction will create an eddy current or vortech and suck in some air.

Dan

 

[tkeracer619]

Glad you like it. Does it have the flow you wanted?

 

[stereomandan]

<a href=showthread.php?s=&postid=8286315#post8286315 target=_blank>Originally posted</a> by tkeracer619
Glad you like it. Does it have the flow you wanted?

Exactly what I wanted. I got lucky, since this is my first time using a closed loop and didn't realy know what to expect. Now I know that this size pump is great for a 90g.

Dan