Hi guys, I have a 120 gallon reef tank that has a 1 1/2 inch drain. I have it setup as a stockman for the drain. It makes a lot of noise and my wife would appreciate it if I could reduce the noise. Happy wife equals more fish tanks. I like the herbie method but I am unwilling to drill another hole in my tank and I currently have 2, 3/4 inch return lines. But I didnt want to replumb the returns I into one line and try and make the other 3/4 inch line the herbie. I just watched a video posted by Luisc3181 (thanks). In the video the guy shows how to make an overflow without drinking the tank. I am thing of trying this idea. I would use the added pipe and it would go over the back of the tank and be my herbie and the main drain pipe now would become the emergency. What do you think? Looking for ideas, pitfalls, etc. Thanks
http://youtu.be/65yVr7DiDls
http://youtu.be/65yVr7DiDls