I asked about this a while ago to the CPR technical support. Here was the reply I got. Basically I think you are safe, and I have 3 of them and have had no problems. To be safe, change them every couple of years.
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hanks for writing. There has been a lot of talk about the use of Rio pumps
lately on the Internet and it has created quite a stir, but I'll be honest in
saying that there seems to be a lot of people feeding on this bad press without
actually experiencing the problems themselves. One issue that you addressed
was
the Rios leaking oil. There is no oil in the Rio powerheads. Most external or
seal less pumps use oil in their pumps, but the Rios do not. We have used many
different pumps with our skimmers, including OTTO and Maxi-Jet and none have
given the performance as the Rios. At a recent conference I was at I went
around
to look at the different skimmers on the market and as far as hang on models
almost all used the Rios, as well as the majority of the sump models. For this
reason you can probably see that the majority of pumps being used as far as
filtration purposes are probably the Rios, which will increase their exposure
hen it comes to faulty units. As far as problems go, what are you
experiencing
with the Rio 600 on your Bak-Pak? Most people complain about having to clean
the
unit often to perform at full capacity. One thing I do with all my Rio Venturi
powerheads is when I top off my tanks with water I microwave a couple of cups
of
water so that it's pretty hot and allow the venturi to draw in this water.
Doing
this once or twice a week gets me consistent performance out of all the Rios I
have, even when I get lazy and don't clean the powerheads for a couple of
months.
Concerning using a different powerhead on the Bak-Pak it is possible to use the
Maxi-Jets with their intake venturi (sold separately). These will fit on the
intake tube of the Bak-Pak 2.
Thanks again for using the Bak-Paks and for your questions and concerns, and
please let us know if you have any further questions as well.
Ted
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and also
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s far as problems found with the Bak-Paks using the Rio 600 I haven't yet
heard of any
failing and killing tank specimens. I did have a person that heard a strange
noise and
then noticed a small bit of smoke come from the tank, at which point the pump
stopped
working of course, but no meltdowns yet. The epoxy coating on the inside is
more than
likely what people are seeing as an oil slick. The problem that I hear most is
that
the pump wouldn't start up after being shut down without having to jostle it or
open
the impeller plate. I think Rio realizes this as they now have a tag on the cord that
says they are not recommended for wavemakers. Most of the time the problems
with
restarting is due to lack of maintenance on the impeller, the impeller shaft
and the
impeller cavity. Another complaint that I spoke of before was the airflow
going into
the powerhead. The little elbows that the airlines are attached to clog fairly
easily
with calcium and salt creep. One thing we started doing was to check these
elbows
before going out to make sure that the elbows were entirely clear, as the molds
that
were used to make the elbows seemed to be partially blocked on some of the Rio
600's.
I use a small drill bit to ensure mine are as open as possible without damaging
the elbow.
Aside from using the Rios on our products, we also are a distributor of them as
well.
Rio has a 6 month warranty on their powerheads. Any returns that we get we
send back
to the American distributor of Rio for replacement and also so that they can
find
solutions to any problems occurring with the pumps. Here is where part of the
problem
is. We hardly get any of these pumps returned back to us. Of the thousands of
pumps
we have sent out in the last two months we have only had one come back that was
defective, which was a larger pump (I believe a Rio 3100). Unfortunately when
we
contact the American distributor and tell them of all the complaints that have
been
going on they are concerned because they have little to go on as hardly any are
being
returned. The pumps that do get returned tend to be the larger models and not
in the
600 series. We suspect that most people are just throwing away their defective
pumps.
Through our bulletin board we urge those who have defective pumps to return
them so the
manufacturer can find out what's going on. It's a bit frustrating on our end
as we
want our products to perform to their fullest ability, and if the powerheads
used on
them are a problem we would want it corrected immediately or we would
definitely seek
an alternate source, but we do need to have an idea of what's going on. I know
if any
of the powerheads I own causes the same problems that I've seen on the Net I
would eturn it immediately.
Thanks again for writing, and please let us know if you have any questions or
comments.
Ted
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