[Oldschoolsalter]

Anyone try to resolve water drain noise with pipe insulation or boxing it in?

It's also a peev of mine.....

I can't imagine the drain EVER possibly having a full slug of water in it....

 

[McPuff]

I've never used one but I've seen the Herbie style drain for a 300 gallon tank that drained into a basement. It was dead silent. I think the key is using large diameter pvc and dialing it in just right. Didn't seem hard to do though.

 

[jduck]

I run 3x 1.5" drains on my 240. 1. Fill siphon, but have to valve it down so it dosent overtake overflow box. Possibly could of went smaller. But 1.5" will handel most snails. 2. Emergency only runs after I restart return pump. 3. Secondary just picks up very little that full siphon dosent. If I opened up full siphon it could handle all the flow through tank.
All very quiet.

 

[Oldschoolsalter]

See...I have a built in overflow.....I think it's a 600 gph.
I use a 1.25" drain to the basement.

I haven't, however, tried any different drain layout for the internal box.
Thought about it..but that's all.

Mine resembles a durso. cept' no vertical standpipe Tee at the top.
Mine has an inverted 90 ,(which pulls from below surface) into a "street-L" 90, down to a vertical stub of about 14 or 16".
Which then is reduced then glued to bottom bulkhead fitting.
It's a "Great Lakes" overflow system "Standard" model...I guess.
No "Flushing" sound...I resolved that one a while back. (I added additional air-venting on the top fitting)
Just the water falling through the drain....it's quite noticeable....

IF I did "dial it back"....my fuges' return chamber level's gonna' drop big time...is it not?
As the return will push faster than drain provides....?
Although my Input/skimmer chamber is a CONSTANT 10.5" depth though..
And that's obtained by the baffles,.. same as the other levels afterward also.......
About 8"-9" in the center, about 5" or 6" in the return compartment....

 

[Alen]

beananimal over flow on my 50 breeder, next to my bed in my room all I hear is the humming from the ehiem 1262 return .
the over flow consist of what was stated above with three pipes (1"pipes) with gate valve very quiet. my setup has a 3 tier setup #1 DT #2 live rock sump tank #3 skimmer/fuge , return tank very quiet