Johnboy....if your drain line is more than 2" deep in your sump water you will get resistance and it can create noise....I had some interaction with Mr. Durso ..so to speak when I set up my first one...it made a huge difference in the ability to adjust....also by placing a small container say 1 gallon in your sump and weighting it down with some rocks you can put the drian line in it and this helps with the bubbles....HTH
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Most of me is undrwata, most of the time!!!
Water Changes, Water Changes, Water Changes ;)
Current Tank Info: Sold until I relocate and start a new one.
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