Well the drains work well. I got the drains completed and installed. The lines now go all the way to the basement and I haven't noticed any leaks.
So far the lines is just going to a floor drain in the basement. It allowed me to have a hose going wide open filling the tank to test the overflows.
I was initially concerned with the gurgling but once the water level built up to a point, the overflows found their balance and became super quite.