Finnex PS-360 filter spitting air - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 01-11-2012, 11:35 AM Thread Starter
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Question Finnex PS-360 filter spitting air

Dear folks at Finnex:

A number of Finnex PX-360 owners on this forum, myself included, report that the filter 'spits' out air on periodic basis. We would appreciate your insight on what might cause such behavior and any recommendations for the remedy.

The discussion on the subject can be found in this thread.

If you need more information, please do not hesitate to PM to me directly.

Best Reagrds
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post #2 of 7 (permalink) Old 01-11-2012, 04:21 PM
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Hello OVT.

The Finnex PX-360 has a self priming mechanism built underneath the canister hood. If the seals are not properly secure, you will get the situation you are describing often and may see some leaking from the canister at some point. Air is being built up within and the priming mechanism is releasing that trapped air once it gets to a certain point to avoid stopping the canister water flow.

The daily occurrence is normal. If seals are tight, many factors can still play a role. Whether it be the canister sucking and storing air, biological gasses within the canister, CO2, etc.

Hope this info helps! Please note, if this is happening over and over again in short periods of time, please check for leaks as one of your seals may not be tight.
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post #3 of 7 (permalink) Old 01-11-2012, 10:23 PM Thread Starter
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Hi Lowe,

Thanks for the prompt reply. I have just replied to your PM: none of my filters are leaking. Are there any instructions on checking/servicing the seals? Thanks a again.

Last edited by OVT; 01-11-2012 at 11:49 PM. Reason: wording
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post #4 of 7 (permalink) Old 01-21-2012, 09:33 AM Thread Starter
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post #5 of 7 (permalink) Old 01-23-2012, 05:06 PM
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Hey OVT. Spoke to an associate about your situation and since you have 3 other filters that are doing well, he suggested switching the tubes on the one spitting air. Specifically, the intake. He suspects air getting in to the filter at that point and may be near the water line so you wouldn't think it to be leaking. Let me know!
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post #6 of 7 (permalink) Old 09-14-2015, 11:55 PM
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I'm also having trouble with air getting into the canister. I don't think it's my intake line, they're tightened up pretty good.

When I received my 360, I opened the tab on top to prime the tank. It had a sandy material on the o-ring here. This makes me a little nervous. Should I clean it up? Should I open up the rest of the filter and check the other o-rings?

When I was getting air bubbles, I opened the priming tab thing and it was definitely full of a lot of air, but it quickly filled back up when I had the tab open.
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post #7 of 7 (permalink) Old 02-24-2016, 06:31 AM
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You should open it and clean the o-ring, it shouldn't be gritty in any way (could be residue from the ceramic rings). For help expelling air, try tilting the filter slightly side to side to help the air get to the release tube that will send it into the outflow.
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