...I dont use baffles in my sumps cause for me they just complicate things.
Absolutely! Partitions are a PITA. I love seeing pictures of large sumps...that are so loaded with superfluous and useless partitions that there is actually very little space in them for media, heaters, etc. Most of the time, a good inspection and a few seconds thoughtful analysis will show that many, most, or even all of them can be eliminated with no effect on function.
But, hey, they look cool...or at least they do until algae grows in some of those narrow, hard-to-clean channels they create, like the one between those two blue sheets here.
OP, if you just removed those blue panels altogether, you would vastly improve the capacity of your sump to contain the overflow that occurs when the power goes out. Right now, the only chamber in which the water level rises and falls as evaporation occurs, or when the pump goes out, is that dinky little one on the far right. Without the blue panels, all of the sump to the right of the sock chamber would perform that function.
In fact, if any of the noise you hear is generated by the water falling over the first blue partition...and I don't know if that's the case...you could reduce that significantly by simply clipping one of those media bags to the top of the partition just to the right of the sump. That way, instead of the water just dumping over that and splashing into the lower water level, it would trickle down through the bag much more quietly. You'd even get a bit of wet/dry action going on, to placate the tech-loving "Hey...look at my filter!" crowd.
