Tetratec

[JonC]

I aquired a tetratec internal tank filter which I have installed in my
coldwater tank. I received no instructions with it,it works Ok ,but how do
you makeit emit bubbles???
It sends out a stream of water via the filter wool, but has no bubbles to
liven up the tank.
Thanks for any replies.

[A Paul Ing]

On Sep 16, 2:31*pm, "JonC" > wrote:
> I aquired a tetratec internal tank filter which I have installed in my
> coldwater tank. I received no instructions with it,it works Ok ,but how do
> you makeit emit bubbles???
> It sends out a stream of water via the filter wool, but has no bubbles to
> liven up the tank.
> Thanks for any replies.

How it Works
TetraTec IN plus filters contain either two or four foam sponges,
through which aquarium water is recirculated. This sponge acts as both
a mechanical filter, straining out particles of solid waste, and as a
biological filter. The biological stage involves friendly bacteria
that colonise the sponge, and which break down ammonal into nitrite,
and then into nitrate. As water is pumped out of the filter, it draws
in air through a ´venturi´ attachment, thus helping to re-oxygenate
the water. Unlike many other filters, the venturi fitting on the IN
plus filters causes virtually no loss of flow.

How to Use
Simply attach your IN plus filter to the side of the aquarium using
the suckers provided, ensuring that it is submerged. The flow rates
can be adjusted with the flow-control dial, and the flow can be
redirected with the rotating outlet. To clean the sponge, simply wash
it in a bowl of aquarium water, but NOT under the tap. Tap water will
kill the friendly filter bacteria. Wash or replace one sponge at a
time. Always read the instructions carefully before use.

So I suspect there is a adjustment knob that opens a hole to the air
through whick air is sucked in by way of a venturi and mixed with
discharged water. Should not be hard to find. Is there a little green
or gray ridged knob with perhaps a piece of air line or an airline
fitting on the top of it. If so thats the air adjustment venturi to
pull in aoir to mix with the water discharge.

[A Paul Ing]

On Sep 16, 2:31*pm, "JonC" > wrote:
> I aquired a tetratec internal tank filter which I have installed in my
> coldwater tank. I received no instructions with it,it works Ok ,but how do
> you makeit emit bubbles???
> It sends out a stream of water via the filter wool, but has no bubbles to
> liven up the tank.
> Thanks for any replies.

go here:
http://www.tetra.de/tetra_cf/tet_internet_import/import_data/IN%201000%20plus.pdf

The air adjustment shold be in the shadopwed section of item D of the
upper pic that is depicted by the letter D directly to the right of
letter A The round serrated knob (which is green in color) is what you
turn to open and close off air into the venturi of the pump.
You only mentioned you had an IN type filter and did not give model
number but they are all about the same except for size...........
Have fun..........................

[JonC]

"A Paul Ing" > wrote in message
...
On Sep 16, 2:31 pm, "JonC" > wrote:
> I aquired a tetratec internal tank filter which I have installed in my
> coldwater tank. I received no instructions with it,it works Ok ,but how do
> you makeit emit bubbles???
> It sends out a stream of water via the filter wool, but has no bubbles to
> liven up the tank.
> Thanks for any replies.

go here:
http://www.tetra.de/tetra_cf/tet_internet_import/import_data/IN%201000%20plus.pdf

The air adjustment shold be in the shadopwed section of item D of the
upper pic that is depicted by the letter D directly to the right of
letter A The round serrated knob (which is green in color) is what you
turn to open and close off air into the venturi of the pump.
You only mentioned you had an IN type filter and did not give model
number but they are all about the same except for size...........
Have fun..........................


Thanks to you both, that has been a great help.