I have my drain submerged tbone. I only use the 90 elbow and it doesn't seem to affect the level in the skimmer but it's 100X's quieter. My skimmer is 6" shorter than yours and I have my skimmer in 8" of water. That's basically right where my elbow is so if I have the elbow turned down, it's about 1/4" under the water level. I would think your elbow would be a lot higher. Try it like this and get rid of the filter bag.
Can you notice the difference between the GenX and the Eheim? If I ordered the Eheim, is it the same one that they also sell for the RS250? How much quieter is it? I don't mind the hum, but I'd rather not deal with it?
I thought the old style was easier to adjust also.
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180 w/ 400W Coralvue dimmable ballast / mini lumenarc reflectors / Reeflux 10K bulbs
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