Iwaki pumps all that?

[Capt_Cully]

It's time to drive myself crazy about a return pump..again...

Priority #1 Energy Efficiency and flow
Priority #2 Noise

I've heard Iwaki's are dead silent, anyone have any input?
Looks like they have some nice models with decent flow curves. Thinkin' 40RXT maybe????

Still not sure of my return scheme, probably going to play around with it. I'm going to say my Head Loss will be about 7-8 Feet. Depending on scheme it could be as low as 6 or as high as 12. I just need a nice consistent pump that can get me to 3 or 4x turnover at my sump and stay as close to 1 Amp as possible.

 

[pascal32]

It would be interesting to see what diameter pipe was used coming off the pump to get the advertised rates. Some manafacturers I (I suspect) are using 2-3" pipe to reduce drag.

Iwaki, blueline, dolphin, reeflo I heard are all good brands. My reeflo is super quiet for the size.

 

[davidpesce]

I have an IWAKI55 and it's by no means quiet. It's possible the 40 might not be as loud.

It does however work awesome as a basement pump!

 

[NirvanaFan]

How large is your tank and sump Cully?

 

[tmz]

Iwaki 100RT ,just keeps going and going ,5 plus years now. Noisey though ;but it's in the basement.

 

[Capt_Cully]

How large is your tank and sump Cully?

230-240 gallons will be total volume.

 

[cardiffgiant]

I have a blueline55. Ever since I bolted it down, it's been dead silent. I have all 1.5" hard pvc.

 

[Gary Majchrzak]

I've never heard it stated that Iwaki pumps are quiet or energy efficient!

Reliable? Yes
Provide flow? Yes

 

[diverdick]

I am running 2 - 100RLT's and they are NOT quiet. If you have to live next to this pump, you would quickly change your mind. These run at 3A each so efficiency is a minus IMHO. Now, the reason I love them: They are bullet proof and will never (should I say very, very , very unlikely) blow a seal and leak on your floor due to the shaft seal on an external pump housing. If there is a jam in the wet side, the motor just keeps turning w/o water flow with little/no issue. Cleaning is simple, soak of the wet components and back in service. I own 2 spares to make swap out a 5 min. job.

My 2 cents

 

[Grenade Glass]

also running Iwaki pump, like others stated, not quiet, but never skips a beat!

 

[tropills]

My little giant was whisper quite for the past 15 years.. just puked the front bushing the other day.. had to send it to pump heaven.. ordered another to replace it, figured why try another brand when the little giant are that time proven..

 

[Conesus_Kid]

Velocity pumps are whisper quiet and reliable. I'm not sure about the model you'd need to get the desired flow rate.

 

[Capt_Cully]

What model Little Giant are you using?

I actually have an old velocity pump. It was my ATO pump. I doubt that particular one has enough juice. But, now that you mention it, it is pretty fern quiet. But then again, it wasn't in my livingroom.

 

[Conesus_Kid]

T4 may be what you're looking for: http://www.bluelineaquatics.com/products/water_pump/velocity.html

 

[magdelan]

Mark, on my current setup, which is all upstairs, I started with a Blueline55. Not a bad pump. Quiet, but didn't push as much water as I'd like.

I switched to an Iwaki 40RXT and love it. It is as quite as the Blueline and pushes far more water. Compare the two charts and you'll see. If you're ever in ROC, let me know if you want to have a look-see.

 

[Capt_Cully]

I have to get my old velocity out of storage. I'm thinking its a T3. I also have an old Blueline 50px-x that I used to run on my 72. I've got lots of options to play with. The Iwaki has my interest Mike, I may end up grabbing both a T4, 40RXT, and hell, who knows, maybe a submersible or 2 while I'm at it. We all know how it goes. Experimentation.

 

[gandolf8]

Hey Capt I am running Iwaki pumps 70 My pump is in the basement so I don't hear it . But this I have for 6 yrs and never miss a beat.

 

[tropills]

It is a little giant 4-mdqx-sc.. Max head is 17 feet, 145watts, 1325gph.. my setup is running about 5 feet of head pressure and is perfect with 1200gph overflow..

 

[Gary Majchrzak]

little giant 4-mdqx-sc

requires oiling

 

[SkiFletch]

Iwaki pumps are crazy reliable that's for sure, and there's something to be said for that when they will be operating in a living space where failure of a shaft seal could mean significant damage to flooring... They're not the quietest thing ever, and they're not the MOST efficient things ever. I find that their larger models poorly efficient, yet their smaller ones aren't that bad. Same goes for noise, small ones not too bad, large ones, not too great.

I've heard good things about panworld, blueline, and little giant externals as well from a reliability standoint, although I'd not be able to judge them from a noise standpoint. The Reeflows are probably too big for you and although some people love them, my experience is that if you run them too far to the edges of their pressure characteristics, their shaft seals fail too frequently for my tastes.