Overflow Question!!!!!!!
 

Well with all the great info everyone gave me I went for it.:surprise:

Had to make my own adapter to fit the bulkhead to the 90 elbow:
http://i765.photobucket.com/albums/x...R/100_2897.jpg

Glued it into the 90:
http://i765.photobucket.com/albums/x...R/100_2899.jpg

Then finished off the Hofer gurgle buster as the construction page described:
http://i765.photobucket.com/albums/x...R/100_2900.jpg

Works great built 2 for my 155 and 1 for my 75 corner. Thanks again to all for the info.:biggrin::biggrin::biggrin:

you could build a lid for the drain side that works for me.

Bill

raise the height of the standpipe so the water level rises in the overflow, lessening the waterfall noise

If you are meaning entering the sump I already have a lid because I have 2 bulk heads in the lid that attach to the drain line's

Can't do that as my overflows in both back corner's a only 4" x 4" and the drains are bulkheads drilled into back of the tank.

Take some pictures so we can get a better idea of what you're dealing with.

Is the noise coming from the water spilling into the overflow box, or from draining, or from splashing upon exiting in the sump?

A couple of picture would help... can you some how put a elbow on it to raise the height of the water in the overflow... if the noise is coming from the "water fall" from the tank to the overflow, that's the best (maybe only) way to reduce the noise... ie; stop the waterfall from "cascading" or "breaking" into a actual waterfall...

The noise is where the water spils into the overflows

http://i765.photobucket.com/albums/x...d/100_2880.jpg

http://i765.photobucket.com/albums/x...d/100_2879.jpg

http://i765.photobucket.com/albums/x...d/100_2878.jpg

http://i765.photobucket.com/albums/x...d/100_2881.jpg

do some research on Durso Standpipes, not sure about using them in a right angle situation, but that is what I use and my overflows are silent.

Durso Standpipes allow you to regulate the amount of water (water level) in the overflow so the water isn' crashing down at the bottom.

Good luck!

That might work if I take out my bulk heads and see if I can work in a 45 degree elbow, then go up but I dont have the room for a top tee and 90.

get an elbow on there (hopefully your bulkhead is slip) and some sort of standpipe (for tight space checkout Hofer or Stockman) to raise the water height.

I got a bit more room so using Dursos but the water doesn't even drop an inch.

http://i67.photobucket.com/albums/h3...5/PC150003.jpg

Cool thanks Mark I could make either one of these work for sure. I even have most of the fitting's and pipe already.:biggrin:

You might be tight on space for a Durso, try the Stockman. I have one in my 180 and no noise.

the Hofer looks like it would be the easiest to do. Going to try it but have to round up a coouple more fitting's and shut down my flow so I can pull my overflow bulkheads.

Thanks everyone this is going to help greatly.

Do you have to pull your bulkheads? Can't just slip a street elbow in, it doesn't need to be tight.

To throw in another type of drain, Herbie is truly silent. Reefjunkie stacked his bulkheads on the back wall (see here), you would just need to drill one more hole.

not sure but might have to pull them. I have to wait until I move a 45 gal hex and a 30 gal from the side's of my 155 this weekend before I can really check it out. I don't want to have to drill more hole's, don't have a hole saw for glass. The tank was like this when I bought it used. I think I can make the Hofer work.

The herbie is incredible. A gate valve is a must though.

I had a dart and also reduced flow a bit. A thinner skim will be quieter. The pump pulls less power too so while you're not using 100% of its abilities you're saving electricity.

I think if you just put a 90 on there and raise the height of the water in the bulk head, u will significantly reduce the noise... if you then need to put a Durso type head on it, it's an easy DIY... I did one for mine with $5 worth of stuff from Home Depot

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