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Old 02-11-2009, 11:44 AM   #1
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Rena SP2 pumping bubbles

Good morning

I woke up this morning and my SP was spitting bubbles out.
The hose connections don't seem to be leaking.
I unplugged the unit and opened it up. Filled with water as far as I could
and started it up again. Still pumps bubbles.
There is not any water leaks outside the tank.
Has anyone else had this problem?
Also, what can I use to lubricate the o-rings? I was thinking about margarine.

Thank you
Charles
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Old 02-11-2009, 11:45 AM   #2
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Sorry - I meant to say XP2 not SP2.
Charles
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Old 02-11-2009, 10:10 PM   #3
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Is the pump silent or making a grinding noise?
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Old 02-11-2009, 11:15 PM   #4
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It kinda has a spitting noise.
I took off the inlet hose at the quick disconnect (pump side) and lubed it with a small
bit of vasaline then shoved the hose further down on the pipe. REclamped and it seems to have stopped the noise. I guess it was sucking air.
Thank you
Charles
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Old 02-11-2009, 11:32 PM   #5
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The reason I ask is that I have two Rena's on my tank and when I first got them hooked up they made one heck of a noise and were pumping air. I took the top off and found the pump housing had 'backed off' till it wasn't connecting right. I put it back together properly and the noise stopped. Several days later, same crap. I pulled it apart again and drove a screw into the side of the pump housing to stop it coming apart and haven't heard from it since.
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Old 02-12-2009, 05:43 AM   #6
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Ru
Thank you
If it happens again, I'll check the housing.
Charles
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Old 02-15-2009, 12:51 PM   #7
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Ruadh
The housing had seperated from the lid?
Where was the air coming from?
Mine is really getting bad now.
I emailed the factory, but they won't see it until Monday.
I just replace the plastic clamps on the intake hose with SS clamps.
It still is pumping air.
You would think if there was a leak that water would be pumped out.

Thank you
Charles
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Old 02-15-2009, 02:53 PM   #8
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Quote:
Originally Posted by cbwmn View Post
Ruadh
The housing had seperated from the lid?
Where was the air coming from?
Mine is really getting bad now.
I emailed the factory, but they won't see it until Monday.
I just replace the plastic clamps on the intake hose with SS clamps.
It still is pumping air.
You would think if there was a leak that water would be pumped out.

Thank you
Charles
Yes, if you pull the top off and flip it over, ( now get a towel and wipe up the water) you will see a circular piece in the middle of the cover. This is the pump/impeller and you can give it a quarter turn counter-clockwise to remove it for cleaning. With mine, I found that the impeller cover would rotate and release itself and allow the water to cavitate and thus pump air and make a heck of a noise.

Maybe later today when I do my water change I'll take the lid off and take a pic of what I'm talkin about here.
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Old 02-15-2009, 03:14 PM   #9
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I just found this link as well.

Filstar-Rena-FAQ
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Old 02-15-2009, 04:38 PM   #10
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Ruadh
Thank you a lot.
I'll read and try to fix it.
Charles
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