The Planted Tank Forum - View Single Post - Finding a mysterious leak in filter...
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post #6 of (permalink) Old 01-31-2013, 03:15 PM Thread Starter
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le0p's Avatar
Join Date: Mar 2012
Location: Wilkes Barre, PA
Posts: 284
Figured this out. It's happening during water changes or any time I turn the power off to the filters.

This is what I figure:

The DIY bio filter holds alot of pressure due to the air pump injecting into the system, when this pressure isn't being removed through water movement taking out some constantly, it's leaking slowly. If I use the pressure release after turning off the power, it doesn't leak.

Thanks for the help!
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