Best pump for return

[Ken]

Hey everybody, thanks for reading.

I am having a very difficult time deciding on a pump for my return line. I
have considered a GRI (Gorman Rupp) 510 (can't find much feedback on these),
Custom Sealife velocity T3 (worry about heat exchange with this one) and a
Lifegard Quiet One. I could really use some input on this decision. Please
let me know what you are using good or bad. If there is a pump I'm missing
let me know about it.

My main qualities I'm looking for are quietness, heat exchange and
durability.

I'm looking for around 600-800 gph at 4.5' head.

Thanks so much,

Ken

[Dragon Slayer]

Mag 9.5

kc

"Ken" > wrote in message
news:Gs8gb.506975$cF.181414@rwcrnsc53...
> Hey everybody, thanks for reading.
>
> I am having a very difficult time deciding on a pump for my return line. I
> have considered a GRI (Gorman Rupp) 510 (can't find much feedback on
these),
> Custom Sealife velocity T3 (worry about heat exchange with this one) and
a
> Lifegard Quiet One. I could really use some input on this decision. Please
> let me know what you are using good or bad. If there is a pump I'm missing
> let me know about it.
>
> My main qualities I'm looking for are quietness, heat exchange and
> durability.
>
> I'm looking for around 600-800 gph at 4.5' head.
>
> Thanks so much,
>
> Ken
>
>

[Patrick]

I've been using a Mag 9.5. Works great in my setup - I have to
throttle it just barely - maybe about 5% flow reduction - perfect.


"Ken" > wrote in message news:<Gs8gb.506975$cF.181414@rwcrnsc53>...
> Hey everybody, thanks for reading.
>
> I am having a very difficult time deciding on a pump for my return line. I
> have considered a GRI (Gorman Rupp) 510 (can't find much feedback on these),
> Custom Sealife velocity T3 (worry about heat exchange with this one) and a
> Lifegard Quiet One. I could really use some input on this decision. Please
> let me know what you are using good or bad. If there is a pump I'm missing
> let me know about it.
>
> My main qualities I'm looking for are quietness, heat exchange and
> durability.
>
> I'm looking for around 600-800 gph at 4.5' head.
>
> Thanks so much,
>
> Ken

[Ian Mather]

The T3's put out allot of heat and I KNOW you'll end up needing a chiller.
The Quiet ones are not Quiet and overheat way to easy (I am referring to the
new and old models). I'd never do a mag drive..noisy, and some of the
flimsiest housing I've ever seen, however they are cheap..but you get what
you pay for. I personally would try an Eheim hobby pump maybe the 1261 or
1262. Unfortunately the Eheim pumps are not cheap...mine set me back a few
hundred bucks. Just my 2 cents.

Ian

"Ken" > wrote in message
news:Gs8gb.506975$cF.181414@rwcrnsc53...
> Hey everybody, thanks for reading.
>
> I am having a very difficult time deciding on a pump for my return line. I
> have considered a GRI (Gorman Rupp) 510 (can't find much feedback on
these),
> Custom Sealife velocity T3 (worry about heat exchange with this one) and
a
> Lifegard Quiet One. I could really use some input on this decision. Please
> let me know what you are using good or bad. If there is a pump I'm missing
> let me know about it.
>
> My main qualities I'm looking for are quietness, heat exchange and
> durability.
>
> I'm looking for around 600-800 gph at 4.5' head.
>
> Thanks so much,
>
> Ken
>
>

[Dragon Slayer]

i guess we are talking about two different "mag" pumps, i have several and
they are quite as church mouses and are solid built and not what i call
"cheap" on price either.

kc

"Ian Mather" > wrote in message
news:AmKgb.43155$6C4.25291@pd7tw1no...
> The T3's put out allot of heat and I KNOW you'll end up needing a chiller.
> The Quiet ones are not Quiet and overheat way to easy (I am referring to
the
> new and old models). I'd never do a mag drive..noisy, and some of the
> flimsiest housing I've ever seen, however they are cheap..but you get what
> you pay for. I personally would try an Eheim hobby pump maybe the 1261 or
> 1262. Unfortunately the Eheim pumps are not cheap...mine set me back a
few
> hundred bucks. Just my 2 cents.
>
> Ian
>
> "Ken" > wrote in message
> news:Gs8gb.506975$cF.181414@rwcrnsc53...
> > Hey everybody, thanks for reading.
> >
> > I am having a very difficult time deciding on a pump for my return line.
I
> > have considered a GRI (Gorman Rupp) 510 (can't find much feedback on
> these),
> > Custom Sealife velocity T3 (worry about heat exchange with this one)
and
> a
> > Lifegard Quiet One. I could really use some input on this decision.
Please
> > let me know what you are using good or bad. If there is a pump I'm
missing
> > let me know about it.
> >
> > My main qualities I'm looking for are quietness, heat exchange and
> > durability.
> >
> > I'm looking for around 600-800 gph at 4.5' head.
> >
> > Thanks so much,
> >
> > Ken
> >
> >
>
>

[Kevin M. Smith]

I have a CustomSeaLife T2 installed in my Aquarium right now. (See my
later posting.)

It is -magically quiet-...I was so surprised how quiet this pump was
when I installed it - I couldn't hear the pump - all I could hear was
the water flow into the sump !!

The problem I have with it, is that I think it is running my aquarium
2-3 deg. F. hotter than the previous pump, which was an aquamedic
oceanrunner (these do run cooler, but do not get one of these pumps -
the bearings can fail too easily and they are noisy and vibrate too
much).

I am now searching for something which is as quiet but transfers less
heat.




On Mon, 06 Oct 2003 07:03:02 GMT, "Ken" > wrote:

>Hey everybody, thanks for reading.
>
>I am having a very difficult time deciding on a pump for my return line. I
>have considered a GRI (Gorman Rupp) 510 (can't find much feedback on these),
>Custom Sealife velocity T3 (worry about heat exchange with this one) and a
>Lifegard Quiet One. I could really use some input on this decision. Please
>let me know what you are using good or bad. If there is a pump I'm missing
>let me know about it.
>
>My main qualities I'm looking for are quietness, heat exchange and
>durability.
>
>I'm looking for around 600-800 gph at 4.5' head.
>
>Thanks so much,
>
>Ken
>

[Patrick]

??? All of the MagDrive pumps I own (I have 3's driving my skimmers,
2 9's as return pumps, and a 5 for mixing and water transfer) are very
quiet, and none of the models I own have what I would call a flimsy
housing - they are very solid, and epoxy-filled.. The only drawback
that I can see is that they do seem to impart some heat to the water -
but being in Seattle, that is not really a bad thing ;)

Are these the ones you are talking about??
http://www.marinedepot.com/a_ph_danner.asp

Note that there may be several different brands of pumps that use a
magnetic impeller drive - maybe you are confusing it with some other
brand??

Just puzzled.



"Ian Mather" > wrote in message news:<AmKgb.43155$6C4.25291@pd7tw1no>...
> The T3's put out allot of heat and I KNOW you'll end up needing a chiller.
> The Quiet ones are not Quiet and overheat way to easy (I am referring to the
> new and old models). I'd never do a mag drive..noisy, and some of the
> flimsiest housing I've ever seen, however they are cheap..but you get what
> you pay for. I personally would try an Eheim hobby pump maybe the 1261 or
> 1262. Unfortunately the Eheim pumps are not cheap...mine set me back a few
> hundred bucks. Just my 2 cents.
>
> Ian
>

[Ian Mather]

Perhaps I should have been more clear, The flimsy construction I am
referring to is the impeller cover and output "cap" (the part bolted down
with 4 screws)Thinest most brittle piece of plastic..Doesn't take much
pressure to crack it!

The loudness part varies, but 2 of the 4 mag's I had started making
grinding/rattling sounds within 1 year.

"Dragon Slayer" > wrote in message
...
> i guess we are talking about two different "mag" pumps, i have several and
> they are quite as church mouses and are solid built and not what i call
> "cheap" on price either.
>
> kc
>
> "Ian Mather" > wrote in message
> news:AmKgb.43155$6C4.25291@pd7tw1no...
> > The T3's put out allot of heat and I KNOW you'll end up needing a
chiller.
> > The Quiet ones are not Quiet and overheat way to easy (I am referring to
> the
> > new and old models). I'd never do a mag drive..noisy, and some of the
> > flimsiest housing I've ever seen, however they are cheap..but you get
what
> > you pay for. I personally would try an Eheim hobby pump maybe the 1261
or
> > 1262. Unfortunately the Eheim pumps are not cheap...mine set me back a
> few
> > hundred bucks. Just my 2 cents.
> >
> > Ian
> >
> > "Ken" > wrote in message
> > news:Gs8gb.506975$cF.181414@rwcrnsc53...
> > > Hey everybody, thanks for reading.
> > >
> > > I am having a very difficult time deciding on a pump for my return
line.
> I
> > > have considered a GRI (Gorman Rupp) 510 (can't find much feedback on
> > these),
> > > Custom Sealife velocity T3 (worry about heat exchange with this one)
> and
> > a
> > > Lifegard Quiet One. I could really use some input on this decision.
> Please
> > > let me know what you are using good or bad. If there is a pump I'm
> missing
> > > let me know about it.
> > >
> > > My main qualities I'm looking for are quietness, heat exchange and
> > > durability.
> > >
> > > I'm looking for around 600-800 gph at 4.5' head.
> > >
> > > Thanks so much,
> > >
> > > Ken
> > >
> > >
> >
> >
>
>

[Patrick]

That is a drawback with these pumps. They need to be kept clean - if
any abrasive grit gets inside, it can score the magnet badly and
eventually lead to wobbling.

"Ian Mather" > wrote in message news:<g4uhb.56468$9l5.47429@pd7tw2no>...
> Perhaps I should have been more clear, The flimsy construction I am
> referring to is the impeller cover and output "cap" (the part bolted down
> with 4 screws)Thinest most brittle piece of plastic..Doesn't take much
> pressure to crack it!
>
> The loudness part varies, but 2 of the 4 mag's I had started making
> grinding/rattling sounds within 1 year.
>
> "Dragon Slayer" > wrote in message
> ...
> > i guess we are talking about two different "mag" pumps, i have several and
> > they are quite as church mouses and are solid built and not what i call
> > "cheap" on price either.
> >
> > kc
> >
> > "Ian Mather" > wrote in message
> > news:AmKgb.43155$6C4.25291@pd7tw1no...
> > > The T3's put out allot of heat and I KNOW you'll end up needing a
> chiller.
> > > The Quiet ones are not Quiet and overheat way to easy (I am referring to
> the
> > > new and old models). I'd never do a mag drive..noisy, and some of the
> > > flimsiest housing I've ever seen, however they are cheap..but you get
> what
> > > you pay for. I personally would try an Eheim hobby pump maybe the 1261
> or
> > > 1262. Unfortunately the Eheim pumps are not cheap...mine set me back a
> few
> > > hundred bucks. Just my 2 cents.
> > >
> > > Ian
> > >
> > > "Ken" > wrote in message
> > > news:Gs8gb.506975$cF.181414@rwcrnsc53...
> > > > Hey everybody, thanks for reading.
> > > >
> > > > I am having a very difficult time deciding on a pump for my return
> line.
> I
> > > > have considered a GRI (Gorman Rupp) 510 (can't find much feedback on
> these),
> > > > Custom Sealife velocity T3 (worry about heat exchange with this one)
> and
> a
> > > > Lifegard Quiet One. I could really use some input on this decision.
> Please
> > > > let me know what you are using good or bad. If there is a pump I'm
> missing
> > > > let me know about it.
> > > >
> > > > My main qualities I'm looking for are quietness, heat exchange and
> > > > durability.
> > > >
> > > > I'm looking for around 600-800 gph at 4.5' head.
> > > >
> > > > Thanks so much,
> > > >
> > > > Ken
> > > >
> > > >
> > >
> > >
> >
> >

[Ken]

I use the CSL T3 and it works great and I really do need to touch it
to make sure it is running because it is so quiet. Depending on your
system you should not need to get a chiller just because of the T3.
Along with the T3 I have a mag5 and another smaller pump in the sump
and have had no problems keeping my 92gal with 2x150 HQI MH and 1x96w
actininc cool with 2 5 buck Walmart fans.

Ken D


"Ken" > wrote in message news:<Gs8gb.506975$cF.181414@rwcrnsc53>...
> Hey everybody, thanks for reading.
>
> I am having a very difficult time deciding on a pump for my return line. I
> have considered a GRI (Gorman Rupp) 510 (can't find much feedback on these),
> Custom Sealife velocity T3 (worry about heat exchange with this one) and a
> Lifegard Quiet One. I could really use some input on this decision. Please
> let me know what you are using good or bad. If there is a pump I'm missing
> let me know about it.
>
> My main qualities I'm looking for are quietness, heat exchange and
> durability.
>
> I'm looking for around 600-800 gph at 4.5' head.
>
> Thanks so much,
>
> Ken

[Kevin M. Smith]

what is your evaporation rate ?

On 10 Oct 2003 08:44:13 -0700, (Ken) wrote:

>I use the CSL T3 and it works great and I really do need to touch it
>to make sure it is running because it is so quiet. Depending on your
>system you should not need to get a chiller just because of the T3.
>Along with the T3 I have a mag5 and another smaller pump in the sump
>and have had no problems keeping my 92gal with 2x150 HQI MH and 1x96w
>actininc cool with 2 5 buck Walmart fans.
>
>Ken D
>
>
>"Ken" > wrote in message news:<Gs8gb.506975$cF.181414@rwcrnsc53>...
>> Hey everybody, thanks for reading.
>>
>> I am having a very difficult time deciding on a pump for my return line. I
>> have considered a GRI (Gorman Rupp) 510 (can't find much feedback on these),
>> Custom Sealife velocity T3 (worry about heat exchange with this one) and a
>> Lifegard Quiet One. I could really use some input on this decision. Please
>> let me know what you are using good or bad. If there is a pump I'm missing
>> let me know about it.
>>
>> My main qualities I'm looking for are quietness, heat exchange and
>> durability.
>>
>> I'm looking for around 600-800 gph at 4.5' head.
>>
>> Thanks so much,
>>
>> Ken

[Chimera]

Is your mag in-line or submerged? If extrnal, how long has it been running that way?

I understand these pumps are not recommended for external use.


(Patrick) wrote in message >...
> I've been using a Mag 9.5. Works great in my setup - I have to
> throttle it just barely - maybe about 5% flow reduction - perfect.
>
>
> "Ken" > wrote in message news:<Gs8gb.506975$cF.181414@rwcrnsc53>...
> > Hey everybody, thanks for reading.
> >
> > I am having a very difficult time deciding on a pump for my return line. I
> > have considered a GRI (Gorman Rupp) 510 (can't find much feedback on these),
> > Custom Sealife velocity T3 (worry about heat exchange with this one) and a
> > Lifegard Quiet One. I could really use some input on this decision. Please
> > let me know what you are using good or bad. If there is a pump I'm missing
> > let me know about it.
> >
> > My main qualities I'm looking for are quietness, heat exchange and
> > durability.
> >
> > I'm looking for around 600-800 gph at 4.5' head.
> >
> > Thanks so much,
> >
> > Ken

[Ken]

I live in Minnesota and this summer I was going through about 1.5 - 2
gals a day. This is a 92gal 400w lighting combimned MH and actininc,
30 gal sump with 72w PC and a small DIY 10 gal tank with 36w PC
plumbed into the system. I have a 5" fan in the hood of the 92, and
another blowing over the sump. I didnt turn the AC on in the house
unless the temp was supposed to get in the mid 80s or higher. Both
fans ran 24x7 during the summer, but now that it is colling off they
are on the same timers as the lights and the evaporation has been at
least cut in half.


Ken D.

Kevin M. Smith > wrote in message >...
> what is your evaporation rate ?
>
> On 10 Oct 2003 08:44:13 -0700, (Ken) wrote:
>
> >I use the CSL T3 and it works great and I really do need to touch it
> >to make sure it is running because it is so quiet. Depending on your
> >system you should not need to get a chiller just because of the T3.
> >Along with the T3 I have a mag5 and another smaller pump in the sump
> >and have had no problems keeping my 92gal with 2x150 HQI MH and 1x96w
> >actininc cool with 2 5 buck Walmart fans.
> >
> >Ken D
> >
> >
> >"Ken" > wrote in message news:<Gs8gb.506975$cF.181414@rwcrnsc53>...
> >> Hey everybody, thanks for reading.
> >>
> >> I am having a very difficult time deciding on a pump for my return line. I
> >> have considered a GRI (Gorman Rupp) 510 (can't find much feedback on these),
> >> Custom Sealife velocity T3 (worry about heat exchange with this one) and a
> >> Lifegard Quiet One. I could really use some input on this decision. Please
> >> let me know what you are using good or bad. If there is a pump I'm missing
> >> let me know about it.
> >>
> >> My main qualities I'm looking for are quietness, heat exchange and
> >> durability.
> >>
> >> I'm looking for around 600-800 gph at 4.5' head.
> >>
> >> Thanks so much,
> >>
> >> Ken

[Dragon Slayer]

my mag 12 is external and cloosed looped, its been going about 2 yrs. i do
NOT notice any less of a heat transfer with it external though.

kc

"Chimera" > wrote in message
m...
> Is your mag in-line or submerged? If extrnal, how long has it been running
that way?
>
> I understand these pumps are not recommended for external use.
>
>
> (Patrick) wrote in message
>...
> > I've been using a Mag 9.5. Works great in my setup - I have to
> > throttle it just barely - maybe about 5% flow reduction - perfect.
> >
> >
> > "Ken" > wrote in message
news:<Gs8gb.506975$cF.181414@rwcrnsc53>...
> > > Hey everybody, thanks for reading.
> > >
> > > I am having a very difficult time deciding on a pump for my return
line. I
> > > have considered a GRI (Gorman Rupp) 510 (can't find much feedback on
these),
> > > Custom Sealife velocity T3 (worry about heat exchange with this one)
and a
> > > Lifegard Quiet One. I could really use some input on this decision.
Please
> > > let me know what you are using good or bad. If there is a pump I'm
missing
> > > let me know about it.
> > >
> > > My main qualities I'm looking for are quietness, heat exchange and
> > > durability.
> > >
> > > I'm looking for around 600-800 gph at 4.5' head.
> > >
> > > Thanks so much,
> > >
> > > Ken

[Patrick]

Mine is submerged


(Chimera) wrote in message >...
> Is your mag in-line or submerged? If extrnal, how long has it been running that way?
>
> I understand these pumps are not recommended for external use.
>
>

[Marc Levenson]

I've run them both ways, with no problems.

Marc
PS: Nice username. :)


Chimera wrote:

> Is your mag in-line or submerged? If extrnal, how long has it been running that way?
>
> I understand these pumps are not recommended for external use.
>

--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

[Chimera]

That's really my (last) name.

Marc Levenson > wrote in message >...
> I've run them both ways, with no problems.
>
> Marc
> PS: Nice username. :)
>
>
> Chimera wrote:
>
> > Is your mag in-line or submerged? If extrnal, how long has it been running that way?
> >
> > I understand these pumps are not recommended for external use.
> >

[Bill Kirkpatrick]

Quite One here. One, then added another to quite my plant
tank, then another to run my EAP style skimmer.

Dead quite. Can't hear anything until you put your ear
right up against them.

Designed to run for years. Mine are 8+ years old. Quite
One is (was?) a Grundfos, construction grade, typically used
in things like geothermal heat pumps and other "real life"
circulation systems (ie. ~50 year planned lifecycle).

At 4.5 feet head, however, you will be at the lower range of
your target. My systems are all closed circuit, sumpless.

***********************
Ken wrote:
> Hey everybody, thanks for reading.
>
> I am having a very difficult time deciding on a pump for my return line. I
> have considered a GRI (Gorman Rupp) 510 (can't find much feedback on these),
> Custom Sealife velocity T3 (worry about heat exchange with this one) and a
> Lifegard Quiet One. I could really use some input on this decision. Please
> let me know what you are using good or bad. If there is a pump I'm missing
> let me know about it.
>
> My main qualities I'm looking for are quietness, heat exchange and
> durability.
>
> I'm looking for around 600-800 gph at 4.5' head.
>
> Thanks so much,
>
> Ken
>
>

[Dr. Drudge]

I have a Quiet One also (old style). Been running quietly for almost three
years w/o problem.
But I have read a lot of bad things about them- seals leaking I think it
was.
I have a mag 9.5 waiting to be put in.


"Bill Kirkpatrick" > wrote in message
...
> Quite One here. One, then added another to quite my plant
> tank, then another to run my EAP style skimmer.
>
> Dead quite. Can't hear anything until you put your ear
> right up against them.
>
> Designed to run for years. Mine are 8+ years old. Quite
> One is (was?) a Grundfos, construction grade, typically used
> in things like geothermal heat pumps and other "real life"
> circulation systems (ie. ~50 year planned lifecycle).
>
> At 4.5 feet head, however, you will be at the lower range of
> your target. My systems are all closed circuit, sumpless.
>
> ***********************
> Ken wrote:
> > Hey everybody, thanks for reading.
> >
> > I am having a very difficult time deciding on a pump for my return line.
I
> > have considered a GRI (Gorman Rupp) 510 (can't find much feedback on
these),
> > Custom Sealife velocity T3 (worry about heat exchange with this one)
and a
> > Lifegard Quiet One. I could really use some input on this decision.
Please
> > let me know what you are using good or bad. If there is a pump I'm
missing
> > let me know about it.
> >
> > My main qualities I'm looking for are quietness, heat exchange and
> > durability.
> >
> > I'm looking for around 600-800 gph at 4.5' head.
> >
> > Thanks so much,
> >
> > Ken
> >
> >

[Rod]

I have a few old Quiet ones,, good pumps, but put out a LOT of heat.
Rod Buehler
www.asplashoflife.com

[Bill Kirkpatrick]

Please define that heat thing for me. I keep hearing it
tossed about with this pump, or that.

When is 85W, not 85W? Conservation of energy suggests, well
actually it is a law of physics, that if you put 85W of
energy into a system - you get 85W of energy in the system.

In our case, energy = heat.

Now, if you're comparing "a LOT" with a 40 watt pump, then
sure. But are you getting the same flow rate from that
pump? I doubt it. Indeed, at 85W for some 1100 GPH, 0
head, the head curve for the Quiet One is pretty darn
efficient in comparison with most other pumps - IF - IF -
you are configured to maximize a low head, circulation
style, pump.

If you are not so configured, then you are pulling 85W to do
produce less output than pressure style pumps might at your
higher head. But, generally, you pay a wattage premium for
higher head capabilities, even when the pump is faced with a
circulation (low head) load.

I'm also curious how I keep reading "I have one, and it's
great. But, I hear they suck." "Oh, the drive shafts rot
in sal****er, I hear." (2 of mine are in salt, 8 years, no
hint of corrosion). "I hear" is a lousy testimonial.

Anyway, regardless of "Model Wars"...

First, decide how much head your system has. Then look at
the pump yield charts. From the group that fits your flow
range, at your head, select for silence, wattage,
durability, and price. I'd always choose a sal****er
approved device.

***************************
Rod wrote:
> I have a few old Quiet ones,, good pumps, but put out a LOT of heat.
> Rod Buehler
> www.asplashoflife.com