Pump ?

[SeaSydney]

A Mak 4 pump puts out 1190 gph @ full flow and a Quiet One 1140gph @ full flow. I dont know if either one is a pressure rated pump. I hate the amount of noise that the Mak 4 makes so this is my question. Would a quiet one pump do a comparably good job to the mak 4 on a bullet 2 skimmer?

Thanks for your help

 

[reefland]

A Mak 4 pump puts out 1190 gph @ full flow and a Quiet One 1140gph @ full flow. I dont know if either one is a pressure rated pump. I hate the amount of noise that the Mak 4 makes so this is my question. Would a quiet one pump do a comparably good job to the mak 4 on a bullet 2 skimmer?

I haven't used a Quiet One pump. But I have used the MAK4 for many years. It is claimed to be a pressure pump but I find its GPH drops sharply under pressure applications such as beckett skimmers. I removed my MAK4 for an Iwaki MD55RLT which is rated at lower GPH 1050 @ 4ft but the performance was fantastic and blew away the MAK4 because the Iwaki is a true pressure pump.

 

[SeaRay]

I've had a Quiet One before as a return pump on my 100 gal. tank and it was a great pump. It can be used in pressure applications as well. Nowadays, however, I'm partial to the magdrives. I have the 1800 and the 2400. The 1800 powers the proteim Skimmer and the 2400 is the return. They're quite and I like the fact that they can be used submerged or inline, I prefer to keep everything contained within the sump so I go submerged (murphy's law). All in all, a great pump, you might want to look at them. If you have your heart set on the quiet one, however, I don't think you'll be disappointed.

 

[ReefLion]

I second Searay's recommendation for the same reasons, especially if you want to stay submerged. When installing in-line, I've had success with Iwaki's both as system pumps and skimmers.

Tim

 

[Bill2]

I thought I read quiet ones are a circulation pump and not a pressure pump

 

[liquid]

They're both pressure rated pumps. However, the Iwaki is rated for a higher PSI than the Mak4 which is why people see better performance from the Iwaki. Here's the curves:

Mak4:

Head (ft) gph
0.0 1188.8
3.3 1093.7
6.6 1014.4
9.8 903.5
13.1 760.8
16.4 586.5
19.7 364.6
23.0 0.0

Iwaki 55:

Head (ft) 55 RT
0 1158
4 1080
12 900
20 540
28 0

Hope this clears it up.

Shane

 

[Eddie G]

Can someone tell me what head ft is? Thanks
Eddie G

 

[liquid]

A rough answer is that it's how high the pump will pump water (assuming no restrictions or frictional loss) or how many PSI the pump will pump against. 1 PSI = 2.3 ft head, so the Mak4 and Iwaki 55 will pump up to 10 PSI 12.2 PSI respectively.

Shane

 

[SeaSydney]

Well just for those who wish to know how the quiet one pump did with the bullet skimmer. In a realy nice and simply way "it su**ed". This pump did not even give the skimmer a chance to perform. So for now I am back to the mak 4 until I can find a replacement that will give me the power but a little more quiet. Thank you guys for all your help.

 

[Eddie G]

A rough answer is that it's how high the pump will pump water (assuming no restrictions or frictional loss) or how many PSI the pump will pump against. 1 PSI = 2.3 ft head, so the Mak4 and Iwaki 55 will pump up to 10 PSI 12.2 PSI respectively.

Shane

Thanks Shane.
I thought that it meant something like that. I have an Iwaki 55rlt that I run through an Ocean Clean canister filled with charcoal. The height of my tank is about 4 1/2 feet. It has been running 24/7 for about 7 yearts without any problems. The pressure does slow down some as the filter get dirty.

I recently moved and am putting my tank & stuff back together. I decided to add my old silent one pump. I plan on purchasing one of those Ocean Current rotating pulsers to have more water movement. And right now I just have the silent one running without anything attached to it. It seems like it is about 1/2 as powerful as the Iwaki 55 rlt. And I never used it more then a total of less then 1 year. And it was frozen. I had to take it apart and move the inside by hand a couple times to get it to run. I think I originally bought it to use with a Berlin hang on protein skimmer. But it was a little to weak for that protein skimmer to work properly. But it should be strong enough for the rotating current generator. Thanks again.

I haven't been very involved with the tank for a few years. But the move made me try to look up some of the old boards I use to read to learn stuff. And this board and
http://www.premiumaquatics.com/ are the only two boards I was able to find so far.

Eddie G

 

[liquid]

Well, we're certainly glad to have you be a part of our online community. Hope to see you around.

Shane