Newbie question about overflow noise

dankoos · 03/04/2010, 07:19 AM

Ok, have two bulkheads in the back of my 90 gallon. Have two upside down 90 degree PVC pipes w/ the strainers collecting the water. Goes through bulkhead and into a "T". The top of the T I have a cap. The bottom of the T is the pipe that goes down to the sump. Right now, both sound like a toilet flushing. Now, I have to drill a hole in those caps, correct? How big and how much should that suppress the noise?

I also have a lot of noise where the pipes go into the sump..I figure I can just extend those down below water level to cut out that noise.

By the way, my pipe size is 1.5" and I have a 700gph pump w/ about 4 or so feet of head.

Thanks!!!

Engine8ff · 03/04/2010, 08:29 AM

Check out the link below this should help. Why did you put filters screens in your return, you may want to take those out and use a filter sock in the sump area. When you adjust the pipes going to the sump they need to have a 90 fitting on them and put about 3/4 they way under your water so air still has somewere to escape if this makes since to you. A picture of your sump would help!! Good luck

http://www.beananimal.com/projects/s...ow-system.aspx

dankoos · 03/04/2010, 08:52 AM

Thanks..I have read that before. While his system is nice, it is overkill for me. I too have my aquarium in the wall in a theatre room like him...I can hardly hear the noise in the finished space...just trying to quiet it as much as possible with the way my plumbing is set up now.

If I don't put screens on the drain pipes inside my DT, fish/crabs/whatever will take a swim down my plumbing..will they not?

Fizz71 · 03/04/2010, 08:55 AM

The size of the hole depends on the amount of the flow. When I setup my custom dursos in my overflow box I started with the smallest hole I could drill and kept bumping it up until I was happy. I had two pipes too and Rich (Durso) also suggested using a gate valve to slow one down and mounting the other higher as a backup with no gate. Personally I'd be nervous about putting gates on ALL my drains like the above link, but I didn't read the whole article so maybe there is a backup in there for clogs.

Fizz71 · 03/04/2010, 08:57 AM

Quote:

Originally Posted by dankoos

Thanks..I have read that before. While his system is nice, it is overkill for me. I too have my aquarium in the wall in a theatre room like him...I can hardly hear the noise in the finished space...just trying to quiet it as much as possible with the way my plumbing is set up now.

If I don't put screens on the drain pipes inside my DT, fish/crabs/whatever will take a swim down my plumbing..will they not?

If I were you I'd make sure the drains (or the 90s) are "slips" so you can remove them to clean them. My last system had a strainers I couldn't remove and it was a big PITA.

dankoos · 03/04/2010, 08:59 AM

Quote:

Originally Posted by Fizz71

If I were you I'd make sure the drains (or the 90s) are "slips" so you can remove them to clean them. My last system had a strainers I couldn't remove and it was a big PITA.

Elbows are threaded..so they can be removed easily. Strainers are also threaded so they can be removed as well.

Fizz71 · 03/04/2010, 09:01 AM

The threaded strainers can be tough to remove once the tank is established because you can't get a good grip on them so I'm glad your 90s are threaded.

bwiele · 03/04/2010, 12:08 PM

I have a Durso standpipe in my 90 AGA overflow. I've drilled a hole in the cap, but I consistently get salt creep accumulating around/near that drilled hole which then limits the airflow and changes the quieting effect of the Durso. Any bright ideas on how to deal with this? Thanks in advance.

Fizz71 · 03/04/2010, 02:01 PM

Wow...Mine is in a closed overflow box (has a cover) so I guess it doesn't get any chance to evaporate because I don't get any salt creep in there. That's a long way to creep? I'd have to see a photo.

stevek480 · 03/04/2010, 11:59 PM

How long does it take to accumulate? Can't you just use a toothpick every now and then to clear it out?

PRDubois · 03/05/2010, 04:31 AM

drill hole in top will take care of noise there.
Running drain line into a "T" connecting it to a 2" stand pipe in the sump will cut the noise and microbubbles in the sump.

isawill · 04/11/2010, 04:57 PM

Would you happen to have a pic of the T setup for the drain in the sump.
I am just now setting up a 135G with dual overflows with Durso on each one, but I get this very loud gurgling sound when the water gets in the sump with huge air bubbles and lots of splash. I have a Eheim 1262 for the return...
Thanks!

kluivertfan2 · 04/11/2010, 05:23 PM

I believe he is talking about something like this.

In this picture the down turned 90 would be on the inside of the tank, with the "T" connection on the outside, and a bulkhead in between.

EDIT: I see you already have this. I used about 1/4 inch hole in the cap for mine. This should also help with the gurgling at the bottom, but if it isn't you can use a reverse Durso
http://projectreeftank.com/2008/05/2...a-noisy-drain/

03/04/2010, 07:19 AM	#1
dankoos Registered Member Join Date: Jan 2010 Location: Columbus, Ohio Posts: 271	Newbie question about overflow noise Ok, have two bulkheads in the back of my 90 gallon. Have two upside down 90 degree PVC pipes w/ the strainers collecting the water. Goes through bulkhead and into a "T". The top of the T I have a cap. The bottom of the T is the pipe that goes down to the sump. Right now, both sound like a toilet flushing. Now, I have to drill a hole in those caps, correct? How big and how much should that suppress the noise? I also have a lot of noise where the pipes go into the sump..I figure I can just extend those down below water level to cut out that noise. By the way, my pipe size is 1.5" and I have a 700gph pump w/ about 4 or so feet of head. Thanks!!!

03/04/2010, 08:29 AM	#2
Engine8ff Registered Member Join Date: Jan 2009 Location: Hertford, NC Posts: 400	Check out the link below this should help. Why did you put filters screens in your return, you may want to take those out and use a filter sock in the sump area. When you adjust the pipes going to the sump they need to have a 90 fitting on them and put about 3/4 they way under your water so air still has somewere to escape if this makes since to you. A picture of your sump would help!! Good luck http://www.beananimal.com/projects/s...ow-system.aspx __________________ Back at it with a 150DD setting up with Apex, Octo, Mag Drive, BRS, MH and T5 and all the other cool stuff.

03/05/2010, 04:31 AM	#11
PRDubois Registered Member Join Date: Feb 2009 Location: Chester, VA Posts: 3,626	drill hole in top will take care of noise there. Running drain line into a "T" connecting it to a 2" stand pipe in the sump will cut the noise and microbubbles in the sump. __________________ http://www.reefcentral.com/forums/showthread.php?t=2534403 Current Tank Info: 225 gal Reef, 60 gal reef & 40b frag tank

04/11/2010, 05:23 PM	#13
kluivertfan2 Registered Member Join Date: Aug 2004 Location: K-zoo Michigan Posts: 77	I believe he is talking about something like this. In this picture the down turned 90 would be on the inside of the tank, with the "T" connection on the outside, and a bulkhead in between. EDIT: I see you already have this. I used about 1/4 inch hole in the cap for mine. This should also help with the gurgling at the bottom, but if it isn't you can use a reverse Durso http://projectreeftank.com/2008/05/2...a-noisy-drain/ Last edited by kluivertfan2; 04/11/2010 at 05:29 PM.

03/04/2010, 08:52 AM	#3
dankoos Registered Member Join Date: Jan 2010 Location: Columbus, Ohio Posts: 271	Thanks..I have read that before. While his system is nice, it is overkill for me. I too have my aquarium in the wall in a theatre room like him...I can hardly hear the noise in the finished space...just trying to quiet it as much as possible with the way my plumbing is set up now. If I don't put screens on the drain pipes inside my DT, fish/crabs/whatever will take a swim down my plumbing..will they not?

03/04/2010, 08:55 AM	#4
Fizz71 FragSwapper Join Date: Oct 2002 Location: West Lawn, PA Posts: 5,800	The size of the hole depends on the amount of the flow. When I setup my custom dursos in my overflow box I started with the smallest hole I could drill and kept bumping it up until I was happy. I had two pipes too and Rich (Durso) also suggested using a gate valve to slow one down and mounting the other higher as a backup with no gate. Personally I'd be nervous about putting gates on ALL my drains like the above link, but I didn't read the whole article so maybe there is a backup in there for clogs.

03/04/2010, 09:01 AM	#7
Fizz71 FragSwapper Join Date: Oct 2002 Location: West Lawn, PA Posts: 5,800	The threaded strainers can be tough to remove once the tank is established because you can't get a good grip on them so I'm glad your 90s are threaded.

03/04/2010, 12:08 PM	#8
bwiele Registered Member Join Date: Dec 2009 Posts: 94	I have a Durso standpipe in my 90 AGA overflow. I've drilled a hole in the cap, but I consistently get salt creep accumulating around/near that drilled hole which then limits the airflow and changes the quieting effect of the Durso. Any bright ideas on how to deal with this? Thanks in advance.

03/04/2010, 02:01 PM	#9
Fizz71 FragSwapper Join Date: Oct 2002 Location: West Lawn, PA Posts: 5,800	Wow...Mine is in a closed overflow box (has a cover) so I guess it doesn't get any chance to evaporate because I don't get any salt creep in there. That's a long way to creep? I'd have to see a photo.

03/04/2010, 11:59 PM	#10
stevek480 Registered Member Join Date: Apr 2009 Location: Flemington, NJ Posts: 605	How long does it take to accumulate? Can't you just use a toothpick every now and then to clear it out?

04/11/2010, 04:57 PM	#12
isawill Registered Member Join Date: Dec 2002 Location: Wyoming Posts: 172	Would you happen to have a pic of the T setup for the drain in the sump. I am just now setting up a 135G with dual overflows with Durso on each one, but I get this very loud gurgling sound when the water gets in the sump with huge air bubbles and lots of splash. I have a Eheim 1262 for the return... Thanks!