Awesome, a new surge thread!
I've had my Carlson surge running beautifully for about 2 months now. It's a 4 gallon bucket on top of my 75 display- 30 sump, that dumps about 3 gallons every 30 second cycle. Surge plumbing is 1.5" and the Durso overflow is 1.25" with 1" bulkhead to the 1.25" drain line. The surge bucket receives all of the flow from my GenX return pump and is the sole circulation. The tank is just lovin' it- now I just have to take pictures...
I'm planning on hooking up a second surge on the opposite side and I
think I can get my overflow to handle it- by letting the Durso become like another Carlson type surge. I hoping that with a little adjustment of the Durso I can get it just right, it's almost doing what I want right now. The key is that the air intake at the top of the Durso is below the critical level of the main tank, so that before the tank could flood, the water would rise and block the air hole causing the Durso pipe to syphon, draining water faster than the regular gravity drain. Right now, the air hole is very high- just below the rim of the display tank, but when I start testing the system with more surges, I think I'm going to have to lower it to make it start syphoning earlier.
What do you think? Surging Dursos?
Grats on the new 180 8)
What I would want to do is put about a half a dozen 10 gallon Carlson type surges on top, all going off at slightly different times. Sometimes they would go off sort of in sequence and every now and then they would all surge at the same time. ...that and max the drain and the sump
Ved