Canister flowrate will be affected after media is congested with time.Originally Posted by revo79
The same thing will apply also for your prefilter.
With a chiller, everything will add up.
I have a couple of suggestion.
1; Follow gryphon bro advice to fill the canister to brim.
2: clean your prefilter. (which prefilter model you are using?) you may also need to fill it up too. We try to lessen the air going towards the canister
3: connect the chiller
4: instead of exiting the rainbar, I recommend you to suck and using siphon to draw out some water to a Pail. ( you should be able to lessen the air bubble if any). Do this WITHOUT POWERING the canister.
5: after you clear some water. Plug the J pipe back to the rainbar and test.
Extra: if you want to. Take out prefilter and compare. But if I were you I won't I'm so lazy. :P
Feedback to me if there is any improvement.
I need a small info, your canister how much flowrate? I simply hate going ehiem's site when I need to search on iPhone.
I only able to remember that much when, mostly saved and referenced on my home pc.
Learning the hardway, not the highway.
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"if he cant be bothered to take the time to write his question properly, why should I take the time to answer him."
I don't think the motor will spoil so easily. Can you try the canister powered on without any filter medium inside the buckets (filled with just water to the brim)? If the flow rate is low even with empty canister, then you can start suspecting its motor problem.
Hi Bro felix_fx2,
I have tried using Bro gryphon's suggestion by filling up both the canister and the pre-filter like what you suggested but got the same results. In fact, I followed your step by step suggestion as well.
By the way, 2026 pump output is 950l/h and I am using the Jaqno pre-filter. I did took out the pre-filter and monitor the flowrate on the maintenance indicator of 2026, the red floating thing is somewhere near the top of the guage.
My observation is like what I mentioned previously, when i bring down the outlet J pipe to the pail, flow is continuously. But once I bring up the pipe to my tank level, the flow stops completely.
As the height goes higher, the flowrate become slower and stops when it reach my tank level.
Is 2026 not powerful enough to support my setup? Should I add in a pump something like a Ehiem Compact+ or Universal pump or simply upgrade to a more powerful filter instead?
Really eager to kick start my cycling process but met with this obstacle....
Oh yah, I missed your suggestion. Maybe I should try your method and see if it is really motor problem. Hope to faster get things done and kick start with my cycling process.
Hi
can try my method posted earlier on. If you do not have Installation Set 1, you can use a cheap funnel ($1 or $2 from neighbourhood shop) to fill up the inlet hose. The idea is to let the canister fill itself up, so you can see that the motor is working fine.
Your chiller new?
In the case I miss anything. Fill up blank
1: Just running the 2026 to the tank works properly?
2:running the 2026 with chiller only.
3:running the 2026 with prefilter only.
Personally I do think 950l flowrate is inadequate for chiller and prefilter. I do recall alot of those bros who are doing shrimp tanks with prefilter and chiller got stronger filters.
Learning the hardway, not the highway.
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"if he cant be bothered to take the time to write his question properly, why should I take the time to answer him."
Hi bro techno, based on your suggestion how would I know if the motor is working fine? Sorry if I sound kind of stupid cos this is my first pro2 filter so don't really knows which part of the filter that is giving me problems?
I tried running just the filter (with media inside) alone with a pail of water. The flowrate is consider very good to me.Your chiller new?
In the case I miss anything. Fill up blank
1: Just running the 2026 to the tank works properly?
2:running the 2026 with chiller only.
3:running the 2026 with prefilter only.
Personally I do think 950l flowrate is inadequate for chiller and prefilter. I do recall alot of those bros who are doing shrimp tanks with prefilter and chiller got stronger filters.
Maybe like what you said, i need to get a more powerful filter? Will a 2028 with flowrate 1050/h do the job or I need an even more higher flowrate for my setup?
I run 2 prefilters and a chiller with my 2215, flowrate out of my lilypipe is good enough for a 1.5 feet tank. Can be better if I reduce pipe length and have lesser elbow joints.
The flowrate of your 2028 without any media inside, it is very strong? When I run mine without anything, it is very strong and I can't hold the water back with my fingers...
what is the height difference between the top of your 2026 pump head to the water surface of your aquarium?
the filter's ability to 'push' water up a certain height is quantified by 'pump head'. for 2026, it should be around 2m. so if the height differential between the 2026 pump head and water surface is more that 2m, water will not flow or have significantly reduced flow rate.
thomas liew
If you start off with an empty canister, and the pump manages to fully fill up the canister, it means the motor/suction is not a problem.
Yes, the flow rate of my 2026 is very good and strong when I tried running just the filter alone in a pail.
Height from my water surface to my 2026 pump head is about 90cm. Now I am thinking whether is it because the length of my hoses are too long that's why it cause my filter unable to pump the water up to my tank.
These are some measurements of my hoses:
From Inlet pipe to pre-filter is 90cm
From pre-filter to filter inlet is 30cm
From filter outlet to chiller inlet is 70cm
Finally from chiller outlet to J pipe is 90cm
I am seriously considering getting a higher flowrate filter to run my pre-filter and chiller. Will keep the 2026 for another tank.
Wife is also getting frustrated of my stagnant tank and has given me the green light to get another filter.
But will a higher flowrate filter be able to solve the problem I am facing?
Nonetheless, I did some research and shortlist the following Eheim filters for my setup.
My current 2026 Pro 2 - Pump output is 950L/H and Del. Head Hmax is 2m
2075 Pro 3 - Pump output is 1250L/H and Del. Head Hmax is 1.8m
2074 Pro 3e - Pump output is 1500L/H and Del. Head Hmax is 2.2m
2076 Pro 3e - Pump output is 1700L/H and Del. Head Hmax is 2.4m
Have taken delivery head Hmax into consideration as well as this may also play a part.
Understand you guys may feel these 3 filters are kind of overkill for my 2x1.5x1.5 feet tank, but now I would rather go for higher flowrate.
Hope you guys can provide me some advice which filter is more suitable for my setup. Thanks.
how old is your filter?
have you tried to run the filter without any filter media and without pre-filter nor chiller connected? can water flow up to your aquarium?
you can experiment with running the filter with a pail and raising the pail above the pump head. check whether there is flow when the height is > 90cm.
thomas liew
Reading about OP's woes kinda get me concerned with my own setup. I have a 3x1.5x1.5 tank and i plan to buy the Eheim 2217, and a 1/4hp chiller. Question is, to avoid the same predicament as OP, should i be concern with the flowrate of the Eheim filter or the chiller? My guess is the chiller since it is the source of the inflow back into the tank? What would be a better filter for a size of my tank?
In the working of pump, it's the pressure head (measure in meter) and the lost of pressure in your setup that determine the final flow rate that you get:Hi guys, my 2026 are not able to pump water up for my cabinet tank. My cabinet tank height is about 1.2m. My setup is as follow, inlet »» pre-filter »» 2026 »» chiller »» outlet. Funny thing is when i bring down my outflow pipe to those normal red pail on the ground, the whole system works. Water start gushing out from my outlet and flow rate on my 2026 shows a reasonable flow rate. But once i bring my outflow pipe back up to my tank, the flow immediately stop. Is it because my 2026 not powerful enough and i need to include a powerhead or pump into my setup?
Total Pump Pressure Head = Head Lost Due to Piping (bends, connectors, media, pre-filter etc) + Head Lost Due to Height Differences + Head Lost to Chiller Coil + Head Lost to Inlet + Head Lost to Outlet + Misc Head Lost + Outlet Pressure Lost (this is the one that give you actual flow rate)
If your setup total head lost is greater that the maximum pump pressure head, then there will be no water flow from your outlet, but when you lower the outlet and run it in a pail, there's a significant drop in the Head Lost Due to Height and hence your filter can produce reasonable flow (as the Total Pump Head > Total Head Lost => Positive Pressure hence water gets push out from the outlet).
Suggest either:
1. Raise your canister to as high as possible within the cabinet (that's quite troublesome I reckon)
2. Reduce your pipe length to the minimum possible
3. Reduce the amount of media/filer wool in your canister
4. Have another pump (check the pressure head, not flowrate) in between your canister and chiller to add more pressure to get your desired outflow
Hope this help, I am an engineer by training but that was more than 10 years ago, had played around with pumps for my marine setup and I know a bit more about the importance of Pressure Head (when I run Beckett Skimmer that needs high pressure) and its relationship to flow rate. Just my 2 cents worth.
Cheers!
4ft Planted Tank (approx. 500L incl sump)
Equipment:
4x2x2.5 12mm Tank with Sump. 4x55W 6,700K T5. Eheim 1262 Return. Hailea 300A Chiller. 5L CO2 with JBJ Solenoid Regulator. Lapis Sand with JBL Base Fert.
i have been using 2026 and 2028. both give satisfactory result. both connect in line and only turn on one at each time. the line up is from tank > 2026 >2028 >Jpipe >tank.
the finding or the key for a in line system to max flow is to put the strongest pump at the end of the line before J pipe. I study with a lot of scenario.
1. power off. siphon only. can see clearly how water fill up all the stages and judge from flow experience. the water should reaches till the J pipe at the level same as my tank.
2. on the power of either one pump (front or back). significantly telling by turn on the pump before the J pipe makes greatest improvement to the flow, relatively to either arrangement used between my pumps. this is because all the flow before reaching the J Pipe effected the most by gravity / siphon. the final push of the pump helps the momentum to the siphon.
so suggest to your case if any chance to swap the arrangement of your pump and chiller.
the last tips to enhance the flow without replace the EHEIM: get a power head around 2000L $30 instal before the pre-filter if allowed. then you even can forget about the EHeim.
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