Loud Overflow

[Aquattro]

Tyler, post a pic of the inside of your overflow box. If it's open to air, there's your noise.

[Werbo]

Sorry but the camera is being repaired as it was dropped recently...

[sphelps]

Do you have room to at least put a 90 (facing down) on the open end of the tee in the overflow?

[Werbo]

Ya that's what I tried when I said mini-durso. I tried it with 1 inch pipe and need another 3/4 inch to make it work.
Should I try 3/4 inch pipe? Would that work?

[golf nut]

Does the pipe draining from the overflow go under the surface of the water in the sump?

[Werbo]

Yes. It goes about 3.5 to 4 inches under the surface of the water in the sump.

[golf nut]

Originally Posted by Tyler Werbowski

Yes. It goes about 3.5 to 4 inches under the surface of the water in the sump.

Is there a simple way for you to get it above the water to do an easy test?

[Werbo]

If my overflow is 5X5 inches with a depth of 3 inches is there enough room to do a Stockman?

[pterfloth]

Is the level in the overflow cycling up and down? If it is, the air hole may be too small. Mine plugged with salt a while ago and it was cycling and gurgling again. When I cleared the air hole, the gurgling disappeared.

I have installed a 90 facing downwards in my similarly sized overflow, fully submerged and the overflow is completely silent. Sounds like we have a similar setup.

Good luck, my tank is in my bedroom and has to be quiet.

[mark]

few other overflow types to try with a single standpipe other than the Durso. Look up Stockman and Hoffer gurgle buster