Getting ready to rip apart and overhaul my 180. I figured now was a great time to switch from the noisy durso style overflows to the Herbie style. The tank has dual overflows so my plan is to make 1 drain and 1 emergency drain in each box then run the return up the back of the tank. Question is, when I plumb the drains/emergency drain can I just use a T and plumb the emergency drain into the main drain? Or should I just Plumb it all separate?


