plumbing experts please help - i want it quiet

[mystic.bertie]

hi guys, i have a 5x2x2 marine tank setup i am nearly ready to add fish, it has a 40" sump (rio 180), i have added 2 overflows using 32mm bulkheads and 2 returns using 25mm bulkheads. I have added a durso onto each overflow and put a few very small holes on the end caps, my water is flowing nicley and there is no slurping or sucking noises .

now where my problem lies is the noise created by the water running down the tubs at the back of the tank, im running an oceanrunner 6500 so a lot of water is getting drained, i have the pipes at the rear at anles to cut down on splashing, should i put some sound muffling material down the back of the tank or is it possible to have these reasoanbly quiet.

 

[dmopar74]

maybe try some foam pipe insulation.

 

[mystic.bertie]

maybe try some foam pipe insulation.

is it available for 32mm pipe

 

[rallysman]

I've used ball valves in the past to keep the pipes almost full. I was able to make it nearly silent using that method.

 

[mystic.bertie]

I've used ball valves in the past to keep the pipes almost full. I was able to make it nearly silent using that method.

can you please explain how that works and was this using a durso ?

 

[rallysman]

can you please explain how that works and was this using a durso ?

Yes, I was using a durso style standpipe. Basicaly I put a ball valve near the bottom of the overflow (close to the sump) and closed it slightly untill water filled inside the pipe but not enough to let the tank level raise. The water in the pipe didn't allow the water to splash. It's best to have a backup overflow incase something goes wrong if you use this method.

 

[dmopar74]

is it available for 32mm pipe

use 2 smaller ones together if its not. ive gotten some for 1 1/2" before.

 

[ozpkchris]

im cant really tell from the pix but do you have the top of the durso open?
if so that would be your problem with the noise

 

[HaleMoana]

^+1

You need to put a cap on top of that durso. Then drill a small hole (1/4" I think) in the cap for ventilation. I even siliconed in an airline valve into the vent hole to control the air intake and... noise.

http://www.dursostandpipes.com/make-your-own-diy

 

[LowCel]

^+1

You need to put a cap on top of that durso. Then drill a small hole (1/4" I think) in the cap for ventilation. I even siliconed in an airline valve into the vent hole to control the air intake and... noise.

http://www.dursostandpipes.com/make-your-own-diy

I was going to suggest the same thing except I was going to way to start off with a 1/16" hole. You can always drill the hole larger if necessary.