OkThe front end of that one makes a lot more sense. Still a weird set-up, IMHO; a giant sump that is mostly empty air, with only a few inches of water throughout most of it and still a tiny pump chamber. I'm curious to see how your additional partitions will change the function; it looks (?) like your added partitions will increase the depth of the water in the main compartment, but that pump chamber...wow...
Need to see it in the acrylic flesh, so to speak.