Noisy Gurgling Overflow - SOLVED!!!!

[Ron99]

Hard to get pictures due to limited access but here's a diagram of how it is set up.

[golf nut]

are there any reductions in the drain, at what level of the display is the water compared to the centerline of the drain bulkhead.

[Ron99]

There were no reductions in the drain, all 1.5 inch pipe. The centerline of the bulkhead is probably around 4 inches below the level of water in the tank.

In any case, it is academic now as I have solved the problem. I built a pseudo Herbie overflow with 2 1" drains coming off the 1.5 inch bulkhead using a T. It's angled so the majority of the flow goes down one side of the T and I have a ball valve on it to control the flow a la Herbie overflow. The higher end of the T is the emergency drain and dips around via 2 90 degree fittings. It is virtually silent now. Yay!!!!

I'll try to post some pics later.

[Ron99]

Finally getting around to posting a pic of my solution. It is a sort of Herbie going from a single 1.5" bulkhead to two 1" lines. It is nearly silent now and a huge difference from the constant sound of rushing water coming from the Durso.