Filter is providing zero flow - The Planted Tank Forum
 
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post #1 of 11 (permalink) Old 09-17-2008, 02:09 AM Thread Starter
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Exclamation Filter is providing zero flow

man, today is not a good day for me; Problem after problem.

I did a small water change today and noticed that my Renastar XP1 is putting out a dribble. I washed out the filter pads last weekend so i don't think that is a problem.

Could the output tube be clogged?

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post #2 of 11 (permalink) Old 09-17-2008, 02:22 AM
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It's much more likely for the input tube to get clogged.

Which set up are you using for the outflow: spray bar or jet nozzle, and w/ or w/o the flow control lever? If using the adjustable flow control - check to be sure it hasn't been bumped or jostled during tank maintainance.
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post #3 of 11 (permalink) Old 09-17-2008, 02:25 AM Thread Starter
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spray bar w/o flow control

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post #4 of 11 (permalink) Old 09-17-2008, 03:02 AM
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use a coil brush to clean the intake tubing. if you have an inline CO2 reactor, it may be clogged too. while the filter does a pretty good job at filtering out debris, there is still plenty that gets into the outflow side of the filter. so check both and reactor if you have one.
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post #5 of 11 (permalink) Old 09-17-2008, 03:30 AM
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Sorry,but chances are that it is your impeller.

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post #6 of 11 (permalink) Old 09-17-2008, 07:46 PM Thread Starter
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I checked the out put and there is nothing clogging it...

hmm... this doesn't seem too good.

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post #7 of 11 (permalink) Old 09-17-2008, 08:48 PM Thread Starter
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I checked the input and still nothing. I also took the filter apart and cleaned the rotor but to no avail. I think I may just have to order an Eheim.

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post #8 of 11 (permalink) Old 09-17-2008, 10:24 PM
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I think Bob is right. Why not just get a new impeller? Or even better, did you clean the impeller? Clean out the ports for the impeller too if you (not sure about maintenance on a XP1, so I am just thowing stuff out there)

No need for whole new filter just yet!! Does the filer hum or make a gurgling sound when you have it on that it normally doesn't make?


EDIT: Just reread your last post, you say rotor, did you mean impeller? Did it move freely in the port?


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post #9 of 11 (permalink) Old 09-18-2008, 12:40 AM Thread Starter
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yes i mean impeller.

On APC i was told to re-prime it and i did but now it is making gurgling noises so i don't think i primed it correctly.

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post #10 of 11 (permalink) Old 09-18-2008, 01:12 AM
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Ahhh!!! You got an air pocket in there. Best way to get it out if you don't have a prime feature... use a power head and force flow into the inlet, then turn on the filter while you are doing it. Give it a second, then turn off pwer head.

Should help force the air out.

OR.... and this is a HUGE OR. If you are brave....

Get a huge bucket, take the Outlet hose off your tank, take off any hardware on the end, just the hose. Plug it with your finger. Put over the bucket and pull finger off. The water is going to fly out!!!!! SO be ready!!!

Bend the tubing to stop the flow as hard as you can! Raise above tank level holding onto the hose. Hook up the outflow hardware and let er rip.

This takes a good quick hand, so be ready.

Disclaimer: I take no reasponsibility for any water damage if you mess this up...


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post #11 of 11 (permalink) Old 09-18-2008, 04:55 AM
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I fill my XP2 in the sink and clamp the top back on there. Then I take it back to my tank, and prime it with the funnel to fill up the hose. Connect it, plug it in, and the only air that comes out is what was in the outlet hose, then it's done.

If the problem is air, that should do it.

If it's something else, then I agree- most likely the impeller.





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