help on my eheim 1260

[hk75]

need some help and advise.

my eheim 1260 was conected directly to the inlet pipe to draw water from the tank, follow by NA co2 reactor, chiller and out to the tank. i faced some problem:

1) When co2 start to injet into the co2 reactor, water in the reactor start to drop to a low level, seem that co2 were accumulated in the reactor and not forcing/diluted fast enough out of the reactor, will this drop in water level reduce the flowrate?

2) the eheim pump start to draw in air bubble from the tank and making some noise, i tie a sponge on the inlet pipe still drawing quiet amount of air into the pump, any idea how should i overcome this?

anybody could advise me. thanks in advance.

[gene]

Why not use the reactor at the outflow? i am not using eheim though. I had the same issues with my jebo, the air gets trapped inside the canister and the water level inside will drop until the water cannot get pumped out

[neon]

I have a 1260 sit on top of my canister - actually should be called 2260. I had the same connection as you before, without any problem. tank-> 2260 -> NA CO2 reactor --> 1HP chiller --> tank.

I find NA Co2 reactor is not that effective, instead I DIY it myself an inline reactor as one of brother shown his in the forum.

Right now I changed my pump to 1262 , so that I have stronger flowrate to split into two outlet into the tank.

Make sure the min flow rate is met according to the chiller requirement, else it will take longer time to chill the tank and waste electricity .

[vratenza]

need some help and advise.

my eheim 1260 was conected directly to the inlet pipe to draw water from the tank, follow by NA co2 reactor, chiller and out to the tank. i faced some problem:

1) When co2 start to injet into the co2 reactor, water in the reactor start to drop to a low level, seem that co2 were accumulated in the reactor and not forcing/diluted fast enough out of the reactor, will this drop in water level reduce the flowrate?

2) the eheim pump start to draw in air bubble from the tank and making some noise, i tie a sponge on the inlet pipe still drawing quiet amount of air into the pump, any idea how should i overcome this?

anybody could advise me. thanks in advance.

it's advisable to have a filter before your co2 reactor and chiller...this will cut down on your maintenance of your chiller and co2 reactor as filtered water will reduce the ghunk accumulating along the chiller internal tubings etc.

Is your inlet pipe attached to a surface skimmer? if not, there is no reason why your pump should get air locking....air has to enter the circulation somehow and I do not see any reason why a normal inlet placed at the bottom of the tank can get air entering it. Anyway, how do you know the noise is due to air bubbles? Could it be pump malfunction?

[hk75]

the inlet is not connected to surface skimmer. I could see air bubble going thru the green eheim hose connected to the pump. Not very sure where could the air bubble come from, or probably the co2 bubble that was blasting at the other corner of the tank?

previously this was the setup:
Inlet>1260>atman 1000cf (w/o power)>na reactor>chiller>outlet.

NA reactor water level drop. Was thinking whether because i cant on full blast as worry the canister could not take the pressure

than change to:
Inlet>1260>na reactor>chiller>outlet.
but , still the same thing happen.

[gentle]

the inlet is not connected to surface skimmer. I could see air bubble going thru the green eheim hose connected to the pump. Not very sure where could the air bubble come from, or probably the co2 bubble that was blasting at the other corner of the tank?

since you could see bubbles at the inlet hose, then that explains the air inthe reactor...

since you do not use a skimmer, then most likely there is crack at the inlet hose?

[vratenza]

the inlet is not connected to surface skimmer. I could see air bubble going thru the green eheim hose connected to the pump. Not very sure where could the air bubble come from, or probably the co2 bubble that was blasting at the other corner of the tank?

previously this was the setup:
Inlet>1260>atman 1000cf (w/o power)>na reactor>chiller>outlet.

NA reactor water level drop. Was thinking whether because i cant on full blast as worry the canister could not take the pressure

than change to:
Inlet>1260>na reactor>chiller>outlet.
but , still the same thing happen.

why don't you troubleshoot? Observe your tank set up when your CO2 is off ( I assume your CO2 is on timer?) If there is no CO2 bubble coming from the other corner of the tank and you still see bubbles in the inlet hose, that means the source is along the inlet hose itself. check your inlet line for any cracks or leak as what the other bro mentioned.

When using NA Co2 reactor, there will be some co2 undissolved at the top but shouldn't be alot. How much are you talking about? maybe can post some pictures? If the undissolved Co2 is too much, it means your Co2 is dissolving too slowly. And that either means the reactor design is supper inefficient (for NA one is not the best but OK) or your flow rate is not enough.

You may want to try putting your CO2 reactor after your chiller just before your water returns to the tank. Reasons: 1) Co2 dissolves better in chilled water. 2) Protect your Chiller from the carbonic acid in the Co2 rich water (just my own theory). {do this only after you narrow down your source of bubbles in your 1260 as introducing another change in an unsolved mystery will make it even more confusing}

[hk75]

been observing, checking and changing my piping and tubing, air lock still exists even when co2 is off. I changed the whole inlet pipes/hose and drain all air lock and restart, but air lock still slowly form up.... i giving up.

Is there a posibility due to the size of inlet pipe and hose size is 25mm and outlet is 16mm??

anyone could help.

why don't you troubleshoot? Observe your tank set up when your CO2 is off ( I assume your CO2 is on timer?) If there is no CO2 bubble coming from the other corner of the tank and you still see bubbles in the inlet hose, that means the source is along the inlet hose itself. check your inlet line for any cracks or leak as what the other bro mentioned.

When using NA Co2 reactor, there will be some co2 undissolved at the top but shouldn't be alot. How much are you talking about? maybe can post some pictures? If the undissolved Co2 is too much, it means your Co2 is dissolving too slowly. And that either means the reactor design is supper inefficient (for NA one is not the best but OK) or your flow rate is not enough.

You may want to try putting your CO2 reactor after your chiller just before your water returns to the tank. Reasons: 1) Co2 dissolves better in chilled water. 2) Protect your Chiller from the carbonic acid in the Co2 rich water (just my own theory). {do this only after you narrow down your source of bubbles in your 1260 as introducing another change in an unsolved mystery will make it even more confusing}