Yes but that is under waterhow deep does your return line stick down into your tank? Is there an air hole in it to stop a syphon?
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Yes but that is under waterhow deep does your return line stick down into your tank? Is there an air hole in it to stop a syphon?
Do you have wave surge pumps or something that could allow your water surface to dip below the anti syphon hole randomly? That could pull some small bubbles. Not a fine mist of micro bubbles.Yes but that is under water
Do you have wave surge pumps or something that could allow your water surface to dip below the anti syphon hole randomly? That could pull some small bubbles. Not a fine mist of micro bubbles.
When I get micro bubbles it is always being chopped up from my drive pumps impeller. Looking at the first photo I can see some large bubbles in the sponge between your skimmer and drive pump. Did you just put it in there before the photo or do they slowly grow in there from escaped skimmer bubbles?
On my tank I have a similar set up to keep skimmer bubbles out of my display. The sponge catches micro bubbles and they slowly grow into bigger ones. Occasionally one of the large bubbles breaks free from the sponge and gets sucked into my return pump and I see the blast of micro bubbles in the display. Is that the area you were watching for 15 minutes in the earlier discussion?
Your return pump looks like a Mag drive? They pull tons of water through a pretty small hole. Is there a chance that the elbow on the intake is putting enough resistance to make it intermittently cavitate?
If the return pump is the source then a lot of times you can feel the change in flow if you put your hand on the pipe. You might be able to hear it if you turn everything else off.