Things get "refined"...and occasinally the drawing wasn't ment as an "as built"...
As far as baffles...I like the two baffle layout the third isn't always neccessary if you have room to properly space the first two...
My basement sump fuge runs just fine on single chamber dividers, but the chambers are large and the water level has a finely tuned drop between chambers... :thinking:
"Standard Baffle Layout"...