Cutting back flow of Eheim 2217

[mo2vation]

My 26 Bow is is planted in black sand.

My 2217 is a monster - and I love it. I've tried re-directing the flow, using a spray bar, no bar, etc... the bottom line is I'm pushing sand all over.

What is best practice to reduce the outflow of the filter into my tank - dial back the large in-flow tap, or dial back the out-flow tap? Or a little of both?

I'm sure the impeller is designed to move water at X RPM... so I'm thinking of dialing back the larger in-flow tube so I don't restrict the output of the impeller.

Make sense?

But what do I know.

Any knowledgeable suggestions are appreciated.

Thanks

- Ken

[freph]

Manipulate the quick disconnect valves on the outflow side. If you don't have any, you can always run some barb fittings and a ball valve on the outflow line.

[mo2vation]

Originally Posted by freph

Manipulate the quick disconnect valves on the outflow side. If you don't have any, you can always run some barb fittings and a ball valve on the outflow line.

In aqua speak:

"Outflow" - water moving out of the tank (in to the filter)

"Inflow" - water moving in to the tank (out of the filter)


or is it the other way around?

Thanks

-Ken

[houseofcards]

Originally Posted by mo2vation

In aqua speak:

"Outflow" - water moving out of the tank (in to the filter)

"Inflow" - water moving in to the tank (out of the filter)


or is it the other way around?

Thanks

-Ken

I think you have a backwards

[talontsiawd]

Inflow=Water moving into the filter (out of the tank)
Outflow=Water moving out of the filter (into the tank)

I was always told to throttle it down using the taps on the outflow side.

[mo2vation]

Originally Posted by talontsiawd

Inflow=Water moving into the filter (out of the tank)
Outflow=Water moving out of the filter (into the tank)

I was always told to throttle it down using the taps on the outflow side.

We're just living in it.



I've seen it used both ways... figured there had to be a protocol someplace.

So choke the outflow a bit.

Thanks

- K

[Borikuan]

Throtlle down the outflow, you want the inflow has unobstructed has posible to allow debris to flow into the filter.

[vnghost]

Choke down the outflow or buy a 2215 impeller and replace the 2217 impeller and you'll have less flow


Sent from my iPhone using Tapatalk

[mo2vation]

Originally Posted by vnghost

Choke down the outflow or buy a 2215 impeller and replace the 2217 impeller and you'll have less flow


Sent from my iPhone using Tapatalk

Nice!

I saw the 2015 is the same size (I have a couple) but with 3 blades, not 5.

Great idea.


- Ken

[Cthulhu]

Why don't you just direct the spray bar directly into the glass? That's what I did with my 2213 wich was too strong for my 25g, I removed the cap from the spray bar and directed in on the glass in a corner.

Or you could split the outflow of the filter in two and have it go to 2 spray bars on opposite sides of the tank.

But I wouldn't reduce the flow of the filter

[Stinkmonky]

You could drill the holes to make them larger on the spray bar. I had to cut mine down to fit it in my tank. I didn't want to ruin it but I told myself that it was just a spray bar not the whole filter and I could always buy a new one if I per chance break it.

[Borikuan]

Originally Posted by Stinkmonky

You could drill the holes to make them larger on the spray bar. I had to cut mine down to fit it in my tank. I didn't want to ruin it but I told myself that it was just a spray bar not the whole filter and I could always buy a new one if I per chance break it.

Great idea also...

[l8nite]

You can also drill holes on the opposite sides, so that it sprays two directions (one towards the glass, the other towards the front of the tank, which will even out the flow current in any one direction