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Discussion Starter · #1 ·
just attached it .....filled it up with water...made sure the tubes were full of water too...and lo and behold i had a fully functional filter ...real quiet and very powerfull jets from the spray bar.....

but today i was walking past the tank...saw no jet coming from the spray bar....

put my ear to the canister and there is a steady hum....

but no water is passing ...what the heck is going on here??

everything is full of water....nobody has closed any valves!!

i thought eheims and nuns had something in common...what gives!!

even opened it all up..reassembled it...

filled it up with water ..sucked water thro the pressure tube so that there are no bubbles trapped

....but still no joy??

strange because i did this before and it worked straight off without a hitch...

can i be the one guy with a faulty eheim??
 

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Not likely. I'm betting on something really simple. Do you get no water when it is operating or is it just very reduced? I found it is very easy to let one of the round barrel or a "rock" of media to fit down into the output tube where it is out of sight. The filte will work fine until it gets to the place where it stoppers up the flow. You can take the filter out and take it apart to look and the blockage moves out of the tubing so that it appears clear. I suggest looking carefully for this. While you have it out, plug it in for a few seconds to make sure you have the impeller placed right and it is truly moving. Something simple that may be hard to find. Since there is only one moving part, it has to be simple!

Before you try these things, try rocking the canister around to clear any weird air bubbles.
 
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