The Planted Tank Forum - View Single Post - Are all check valves created equal, low air pressure problem
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Old 12-09-2012, 03:33 PM   #7
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Originally Posted by Soothing Shrimp View Post
Yeah, I don't use check valves either.

Keep in mind that getting air to your filter depends on length of hose and how deep the filter is in the water, too. (You can actually cheat a little if there is not enough air pressure on a specific filter to make bubbles, by moving it higher in the tank. )
The sponge filter basically sit on the bottom of the tank with the top plastic piece about 1/8" below the water surface (short tank). The tube running from air pump to filter is, oh, maybe 7-8 inches long so I'm trying to keep the distances very short.
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