For all you RIO pump fans...please read

[Marc Levenson]

As most of you know, I constantly warn people that Rio pumps are dangerous.
Especially the 2100 and 2500 pump.

http://reefcentral.com/forums/showthread.php?s=&threadid=338658

Marc

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

[PaulB]

Are there any Rio pump fans?

"Marc Levenson" > wrote in message
...
> As most of you know, I constantly warn people that Rio pumps are
dangerous.
> Especially the 2100 and 2500 pump.
>
> http://reefcentral.com/forums/showthread.php?s=&threadid=338658
>
> Marc
>
> --
> Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
> Business Page: http://www.sparklingfloorservice.com
> Marine Hobbyist: http://www.melevsreef.com
>
>
>

[Richard Reynolds]

> Are there any Rio pump fans?

define fan!

i actually have had 100% good luck with the hyperflow pumps,

ive had fairly good luck with the 180's(3 dead out of 16 after a little over a year ish
and 1 out of 16 that are bout 3 months old)
mixed with the rio 800 but ok with the 600
ive had a few 1100's 1700, 2100, 2500 fail
so far my 3100 4100 and 4800 have been solid

ive also had a few mag drives fail. and when they really go they go just as bad as a rio.

also some of the rio's are more plankton friendly than mag/maxijet

so do i have to be a fan???

--
Richard Reynolds

[Pszemol]

"Richard Reynolds" > wrote in message news:vYu8c.5946$_U.589@lakeread05...
> also some of the rio's are more plankton friendly than mag/maxijet

Would you elaborate a little bit more on that subject, please?

[Pszemol]

"PaulB" > wrote in message . com...
> Are there any Rio pump fans?

I have only one small rio pump powering my HOB refugium by CPR
and so far is it just "ok" I guess...

[PaulB]

I have one of those and one for my skimmer. They work well enough, but my
Rio 2500s stopped restarting after three months like clockwork. This could
easily crash my tank if the power went off for a short time while I was at
work. I could have bought an Iwaki for the money I spent on replacement
pumps and impellers, and saved money.


"Pszemol" > wrote in message
...
> "PaulB" > wrote in message
. com...
> > Are there any Rio pump fans?
>
> I have only one small rio pump powering my HOB refugium by CPR
> and so far is it just "ok" I guess...
>

[Pszemol]

"PaulB" > wrote in message . com...
> I have one of those and one for my skimmer. They work well enough, but my
> Rio 2500s stopped restarting after three months like clockwork. This could
> easily crash my tank if the power went off for a short time while I was at
> work. I could have bought an Iwaki for the money I spent on replacement
> pumps and impellers, and saved money.

Have you inspected the impeller when in non-starting mode?
Whas it still like the new one is: build from two, loose pieces
or these two pieces stuck together? This half-turn of the free
move the wheel has around the magnetic core is crucial to pump
reliable re-start. Dirty maxi-jet and mini-jet with impellers
stuck into one piece have trobles starting as well.

[Ross Bagley]

"Richard Reynolds" > writes:

> also some of the rio's are more plankton friendly than mag/maxijet

How do you know? I don't disbelieve you, it's just that this
(plankton mortality in pumps) is a subject of real interest to me
and I'd like to know what information you have.

Regards,
Ross

-- Ross Bagley http://rossbagley.com/rba
"Security is mostly a superstition. It does not exist in nature...
Life is either a daring adventure or nothing." -- Helen Keller

[Richard Reynolds]

> > also some of the rio's are more plankton friendly than mag/maxijet
>
> How do you know? I don't disbelieve you, it's just that this
> (plankton mortality in pumps) is a subject of real interest to me
> and I'd like to know what information you have.

its been published before, its not so easy to find but its out there on the vast internet,
but basically certain things can go thru certain pumps at certain rates, and id have to
search for the data.

some of the rio's fall into this, and in every category that *I* am interested in a rio
180 fits for some thing it needs mods for others doesnt the 1100 is another that fits into
some areas.

in every case when the pump is not made specifically to work with things like phyto it
requires a careful exam and sanding down any imperfections from when the plastic went thru
the mold or whatever they do it can leave lips or extra small pieces. along with that no
pump is 100% plankton friendly you have to pick your planktons :D and guage how much harm
is acceptiable, a note i did say "more plankton friendly"!

a starting place you can pump rotifers thru a rio 180, they will live, they will drop
there eggs so you cant use it in the culture, but you can use it to move the cultured
rotifers. it also means you can use it in a rearing tank (but you *must* keep the fry out)
a parastolic pump is the same way if you set the rate up to high they will drop there
eggs, the catch you can turn down a parastolic pump you cant really turn down most
powerheads (closing a valve doesnt cut it) most of the smaller <30micron zooplankton
things like cilliates are also safe going thru a rio 180

copepods are the same as rotifers if you have the pump within the culture container you
will kill the culture, by removing the eggs but you can use them to pump from the culture
into your tank

another angle most pumps will pump nano without harm, even inside the culture container
but only a few will pump tetraselmise the cell wall is to thin, the cells break down and
you begin to pump mush. however you can modify a rio to be able to pump tetraselmise its
not hard some sanding here and there shorten the blades on the impeller and away you go.
that same modified impeller will now also pump baby mysis.

id have to dig around to be certain of all the models. ive already selected them, so I
know that the ones I picked were good, and past that I didnt need the data.

--
Richard Reynolds

[PaulB]

The only thing I could see was some wear on the back on the impeller was
worn. There is a star shaped hub that has six paddles attached to it so
that they can move about 45 degrees. The back of these seems to be worn
where they rub against the housing of the motor.

The impellor was free to rotate 180 degrees on the shaft that connects it to
the magnet.



"Pszemol" > wrote in message
...
> "PaulB" > wrote in message
. com...
> > I have one of those and one for my skimmer. They work well enough, but
my
> > Rio 2500s stopped restarting after three months like clockwork. This
could
> > easily crash my tank if the power went off for a short time while I was
at
> > work. I could have bought an Iwaki for the money I spent on replacement
> > pumps and impellers, and saved money.
>
> Have you inspected the impeller when in non-starting mode?
> Whas it still like the new one is: build from two, loose pieces
> or these two pieces stuck together? This half-turn of the free
> move the wheel has around the magnetic core is crucial to pump
> reliable re-start. Dirty maxi-jet and mini-jet with impellers
> stuck into one piece have trobles starting as well.
>

[david]

"Richard Reynolds" > wrote in message
news:adO8c.13197$_U.6261@lakeread05...
> > > also some of the rio's are more plankton friendly than mag/maxijet
> >
> > How do you know? I don't disbelieve you, it's just that this
> > (plankton mortality in pumps) is a subject of real interest to me
> > and I'd like to know what information you have.
>
> its been published before, its not so easy to find but its out there on
the vast internet,
> but basically certain things can go thru certain pumps at certain rates,
and id have to
> search for the data.
>
> some of the rio's fall into this, and in every category that *I* am
interested in a rio
> 180 fits for some thing it needs mods for others doesnt the 1100 is
another that fits into
> some areas.
>
> in every case when the pump is not made specifically to work with things
like phyto it
> requires a careful exam and sanding down any imperfections from when the
plastic went thru
> the mold or whatever they do it can leave lips or extra small pieces.
along with that no
> pump is 100% plankton friendly you have to pick your planktons :D and
guage how much harm
> is acceptiable, a note i did say "more plankton friendly"!
>
> a starting place you can pump rotifers thru a rio 180, they will live,
they will drop
> there eggs so you cant use it in the culture, but you can use it to move
the cultured
> rotifers. it also means you can use it in a rearing tank (but you *must*
keep the fry out)
> a parastolic pump is the same way if you set the rate up to high they will
drop there
> eggs, the catch you can turn down a parastolic pump you cant really turn
down most
> powerheads (closing a valve doesnt cut it) most of the smaller <30micron
zooplankton
> things like cilliates are also safe going thru a rio 180
>
> copepods are the same as rotifers if you have the pump within the culture
container you
> will kill the culture, by removing the eggs but you can use them to pump
from the culture
> into your tank
>
> another angle most pumps will pump nano without harm, even inside the
culture container
> but only a few will pump tetraselmise the cell wall is to thin, the cells
break down and
> you begin to pump mush. however you can modify a rio to be able to pump
tetraselmise its
> not hard some sanding here and there shorten the blades on the impeller
and away you go.
> that same modified impeller will now also pump baby mysis.
>
> id have to dig around to be certain of all the models. ive already
selected them, so I
> know that the ones I picked were good, and past that I didnt need the
data.
>
> --
> Richard Reynolds
>
>
>
go on Richard tell us more. how much do you shorten the blades by. where are
the web sites. if there not there can you make one :-)

David

[GamePlayer No. 1058]

The only problem I've had with my smaller rios, is the amount of heat they
put off. I use one in each JBJ nanocube, and it raises the water temp by a
good 3 to 5 degrees in my tank. In one tank it's worse than the other and I
thought it was a faulty heater, but then unplugged the rio, and waited about
5 or so hours and the temp came back down again.

Their both unplugged now because of this.

"Marc Levenson" > wrote in message
...
> As most of you know, I constantly warn people that Rio pumps are
dangerous.
> Especially the 2100 and 2500 pump.
>
> http://reefcentral.com/forums/showthread.php?s=&threadid=338658
>
> Marc
>
> --
> Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
> Business Page: http://www.sparklingfloorservice.com
> Marine Hobbyist: http://www.melevsreef.com
>
>

[Matt Awbrey]

So it sounds as if it really doesn't matter who's pump you use. Just as long
as it's a low head, low rpm pump that has alot of slop as far as tolerences
go between the impeller and the impeller housing. More room for the critters
to pass without actually coming into contact with any spinning parts. the
greater the odds of any particular plankton making it thru alive or at least
without too much damage. Also, by removing any burrs or uneven spots on the
impeller blades lessen the chance that the imperfection will create micro
sized areas of low pressure behind the imperfections trailing edge.
Cavitation is simply areas of pressure so low that water is no longer able
to remain a solid but instead boils itself back into it's gasious state. Any
plankton getting itself sucked into the area of low pressure and it's going
to find it's insides are boiled as well.
If you really want to minimize the amount of plankton being killed, nothing
beats a diaphram pump. I have two that I picked up at an surplus restrauant
supply busines for less then $20 bucks. One pumps about a quart per stroke
the other slightly more. Both are noticibly louder then a powerhead that is
in good working order. Maximum flowrates are around 250 gph. Perfect for
creating surge areas that are very similar to actual wave action. And
perfect for plankton because the only moving parts are the diaphram itself
and the two reed valves made of rubber.
Now... whether or not any of this is going to increase the growthrates of
the majority of corals that reside in our aquariums...Lets just say that I
keep an open mind.
"Richard Reynolds" > wrote in message
news:adO8c.13197$_U.6261@lakeread05...
> > > also some of the rio's are more plankton friendly than mag/maxijet
> >
> > How do you know? I don't disbelieve you, it's just that this
> > (plankton mortality in pumps) is a subject of real interest to me
> > and I'd like to know what information you have.
>
> its been published before, its not so easy to find but its out there on
the vast internet,
> but basically certain things can go thru certain pumps at certain rates,
and id have to
> search for the data.
>
> some of the rio's fall into this, and in every category that *I* am
interested in a rio
> 180 fits for some thing it needs mods for others doesnt the 1100 is
another that fits into
> some areas.
>
> in every case when the pump is not made specifically to work with things
like phyto it
> requires a careful exam and sanding down any imperfections from when the
plastic went thru
> the mold or whatever they do it can leave lips or extra small pieces.
along with that no
> pump is 100% plankton friendly you have to pick your planktons :D and
guage how much harm
> is acceptiable, a note i did say "more plankton friendly"!
>
> a starting place you can pump rotifers thru a rio 180, they will live,
they will drop
> there eggs so you cant use it in the culture, but you can use it to move
the cultured
> rotifers. it also means you can use it in a rearing tank (but you *must*
keep the fry out)
> a parastolic pump is the same way if you set the rate up to high they will
drop there
> eggs, the catch you can turn down a parastolic pump you cant really turn
down most
> powerheads (closing a valve doesnt cut it) most of the smaller <30micron
zooplankton
> things like cilliates are also safe going thru a rio 180
>
> copepods are the same as rotifers if you have the pump within the culture
container you
> will kill the culture, by removing the eggs but you can use them to pump
from the culture
> into your tank
>
> another angle most pumps will pump nano without harm, even inside the
culture container
> but only a few will pump tetraselmise the cell wall is to thin, the cells
break down and
> you begin to pump mush. however you can modify a rio to be able to pump
tetraselmise its
> not hard some sanding here and there shorten the blades on the impeller
and away you go.
> that same modified impeller will now also pump baby mysis.
>
> id have to dig around to be certain of all the models. ive already
selected them, so I
> know that the ones I picked were good, and past that I didnt need the
data.
>
> --
> Richard Reynolds
>
>
>