Yea!! Eheim.. spraybar question..

[1fish2fish3fish]

Hi everyone..

just purchased my new Eheim and Im new to the canister filters, I can see it will take some planning, on placing of the valves hose length etc..
not like the OB filters just plug and go..lol..
My question is should ( has anyone ) ran the spray bar across to the other side of the tank intake at one end bar at the other. I was thinking of adding another spray bar, so it hit more water surface area.. its a 4 ft tank..
Sue

[Hollowman]

I am sorry, but I cannot really understand the question. :?

[DiscusDave]

If you're asking if you should set the filter up so the inlet is at one end of the tank and the outlet at the other? My personal preference is to have both at the same end.

[BobbyBruce]

I've always gone with the spray bar at the opposite end to the outlet.

Even when I had an internal filter I attached a hose to the outlet, ran it to the other end of the tank and through a spray bar.

Regards,

Bob

[ILLUSN]

Spray bar at opposite end works best for circulation, just a pointer mount the taps as close to the canister body as possible, that way your servicing will be much easier.

[TW]

Where I had my tanks made, they always said both the spray bar & the intake should be at the same end for best circulation.

But is that the question you're asking? Do you mean you'd like to extend the length of your spray bar, so it extends further across the length of your tank?

[1fish2fish3fish]

thanks for the replys..
sorry, re-reading it, does sound kinda funny..

..first thought was putting it just off side of the intake, but thought it would be better for circulation being over more, closer to the other end of the tank. Or adding another spraybar. Does anyone have more than 1 spray bar?
Most on here have 4 ft tanks+ do you only use 1..?
looks like some say its best close and others say off to the other end..

Certainly the Eheim 2217 will do just fine for a 77gal.
thought Id ask before setting up and cutting tubing first...etc..etc..
trying to avoid dead spots I think.. :roll: ...can someone elaborate on that a bit more for me..
thanks Sue

[bartek]

I ran 1 2217 on a 4ft tank with the intake at one end of the tank and the spray bar at the other. Worked fine with no problem with circulation.

I have a friend which is running a 2217 on a 3ft with the intake and spray bar at the same end but he has extended the spray bar to twice it's normal size.

This seems to be working fine.

[1fish2fish3fish]

thanks Bartek.. guess its just a matter of prefrence
with some.. Im thinking it would be better to have 2 bars, gosh it just seems so little, this 12 inch tube for a large tank..
just dont want dead spots..


Sue

[1fish2fish3fish]

thanks Illusn... for the tip... thought about that too.
Im figuring about 3-5 inches from the canister would be good..
Sue

[Old Dave]

And now for someting a little different..
This on one of my 4" non-discus tanks.

The spray bar that came with my aqua Nova filter isn't too long so I decided to play around.

The actual filter to tank return is at the opposite end to the intake. My spray bar is mounted vertically, almost touching the bottom and sprays out at about 45 degrees from the corner. I have the return nearest the cannister and have lengthened the hose to the inlet.
Just above water level is a T piece with a section of clear plastic tubing
with suitable holes making another spray bar across the top of the end wall.
This gives water movement at all levels as well as some surface movement.
I then use a 36" flexible "air stone" tube along the back wall.
The actual amount of water movement wouldn't upset plants or fish.

Must get around to some pics.
Do you like my 2 cannisters in series?

Old Dave

[ILLUSN]

if running 2 filters in series DO NOT POWER THE 1ST CANISTER! if you do you can over preassurise the 2nd canister resulting in moter failure (best case) or failure of the filter seal (top flies off filter, tank drains, fish die, heater burns house down).

you get some flow rate reduction as well, the reduction i got with my old 2017 slave canister was ~10% http://www.discusforums.com/forum/viewtopic.php?p=113802&highlight=2017#113802

[Old Dave]

Obviously I should have added it to ILLUSN's great post. :oops:
Just re-inventing the wheel !

A friend gave me the cannister but without hoses, seals etc.
Bought a few seals and that's what I came up with.
Yup, power is on the second unit, syphon/water pressure from the tank takes care of the first one.

Back to topic, If you don't run much aeration then the longer spray bar is a good idea.

HTH,
Old Dave

[1fish2fish3fish]

Wow thanks guys!!..

Old Dave thats great, what you've done with the spraybar(s).
As much as we all know how the Eheim rates, we still try to modify and better it.. :wink:.

I can see why you all go that extra bit, you all have lovely Discus.
Your setups, and being different than the next, certainly is seen in the Discus you keep. they are wondereful!!
Thats why I come to this site, you guys/gals know your stuff.. :wink:

Dave do you have any pics of the spraybar setup ? so I can see..

[1fish2fish3fish]

just saw the last post Dave, I will hook up the extra bar, cause yes Im not looking to add air stones or bubble walls..etc..
Sue

[aquafrogstuff]

I see things slightly differently.

If you have water supply, irrespective of a spray bar or basic open nozzle, at one end and the suction stem at the same end or opposing end, the main difference is the turbulance of the water in the tank.

I've noted from my own experience that having the water supply at one end and suction stem at the other produces less general circulation in the tank. This is simply because the water from the supply (e.g. spray bar) is being projected towards the suction point. Conversely, if the supply and suction points are at the same end, you tend to get flow in one direction at the top of the tank and opposing flow down the bottom of the tank towards the suction point. The reason for this is that the flow volume into the filter equals the flow volume out. To produce a particular flow rate at the tope of the tank means the same opposing flow down the bottom where the suction stem is.

I've setup a 6ft tank predrilled with four 1" holes (see basic schematic below). The black blocks represent sponges over suction points. The two lines at each end of the tank indicate water supply, one from the filter and the other from an external supply for water changes. Valves (A) and (B) allow me to control or balance the suction at each end of the tank to create whatever flow or turbulance in the tank I need.

Hope this helps,

Dwayne

[swampy.1972]

I have a canister with spray bar on a 4ft tank. I have the spray bar at the bottom of the tank and the pick up at the opposite end. I did it this way as I don't like the noise of the water splashing across the surface. I use a sponge filter for airation. I've found this to be excellent as it works like a sweeper on the bare bottom tank pushing any solid waste towards the pick up. It also gives the fish time to get to sinking food before it gets into the current (then they move down stream and pick it up before it enters the pick up).
Hope this helps

[1fish2fish3fish]

well thats a first, spraybar at the bottom.. sounds like it would work well in BB tanks. I like that idea :wink:
now that Ive had it running for a few days now, I think I will move it more towards thesame end of the intake, (not quite the middle) as I want the bare bottom area at the far end as feeding it wont help much if the bar is over there..
thanks for all feed back, didnt realize just how many have there own way of placing it, rather than the standard way.
..and take into concideration what all is in the tank as far a decor/plant etc goes too.
hope to pick up my heater tomorrow after work.. :D and add a few plants.
Sue