I’ve made my sump diy without any research on why these chambers are the way they are lol. I pretty much copied pictures. My drain flows as pictured, pretty hard, into the side of my filter sock. How is your drain directed into your sock/socks?
Mine fill up a single chamber then flow over top to a mesh sock then to a felt sock. I would raise the water level where your sock is to completely submerge that sock and extend drain pipe into it. That would fix the rapid draining and quite it down.
I would leave the sock above waterline and the hose below waterline. Some detritus/algae is going to float right out of the sock if you put it below waterline.
True, I like how my sock is set up...it’s not over flowing and it’s capturing debris, but I’m wondering if I should try to get my drain to have more of a wide flow into the sock so it’s not shooting into the side of the sock. I turn it a little so it’s not hitting the same spot, but it seems like by blasting the water in I’m not using the whole sock efficiently.