Intolerably loud air intake on NWB-150

alienbob113 · 11/01/2012, 11:55 AM

I was getting fed up by the lackluster performance of my cpr bak-pak skimmer on my 20g so i decided to modify my sump a little and install the Reef Octopus NWB-150 i had sitting around from my 75g i took down. The air intake is SO LOUD!! Is this typical of these skimmers? The tank is in my bedroom so the quieter i can get it the better (was virtually silent before). I can use my reefkeeper to turn it off while im falling asleep, but would rather a proper fix.
Here's a video to show how loud it is:

tkeracer619 · 11/01/2012, 12:22 PM

Pull the "silencer" apart and put cotton balls in it.

wildman926 · 11/01/2012, 01:17 PM

Your silencer does not look right. One end should be offset and the other centered. The way yours is now, it is like not having a silerncer on at all.

Here is a pic of my old SRO 1000. You can see what i am talking about on the silencer.

tkeracer619 · 11/01/2012, 01:34 PM

Coralvue isn't known for their silencers

.

Cotton balls will do the trick. If it doesn't I can help you build one that will work with stuff you have around the house.

You will need two plastic cups, cotton balls, and some tape.

alienbob113 · 11/01/2012, 01:38 PM

Quote:

Originally Posted by wildman926

Your silencer does not look right. One end should be offset and the other centered. The way yours is now, it is like not having a silerncer on at all.

Here is a pic of my old SRO 1000. You can see what i am talking about on the silencer.

yeah thats how it is now. Seems the same?

And thanks @ the cotton balls, it helps some but not where id like it to be. I only spent 5 min with it and have to go to work, im sure with some tweaking i can get it there

tkeracer619 · 11/01/2012, 01:44 PM

cool. We will work on it when you get home.

Just a bad design.

Cat Fish · 12/04/2012, 02:26 PM

Did you ever find a solution? I'm having the exact same issue with a reef octopus skimmer (different model). My "silencer" has 2 intakes, both at the same height. Should they be off-set from each other?

sminker · 12/04/2012, 09:13 PM

I'll take a picture of my homemade silencer. Dead quite. Use a small Rubbermaid container, drill one hole in the bottom just big enough for the tube to squeeze through then drill two holes in the top and put a 2" long tube the same diameter as the main tube and close it up. I can only hear it when I open up the cabinet.

mrbee2828 · 05/14/2013, 07:29 AM

Why did this thread die? What was the solution? I hate mine.

NTP66 · 05/14/2013, 12:01 PM

Quote:

Originally Posted by Cat Fish

Did you ever find a solution? I'm having the exact same issue with a reef octopus skimmer (different model). My "silencer" has 2 intakes, both at the same height. Should they be off-set from each other?

I put a rubber cap on one of the intakes at the top, which has helped with noise. It didn't come with my skimmer, but when I called CoralVue, they sent me the caps for free. I would be interested in seeing sminker's design, though.

11/01/2012, 11:55 AM	#1
alienbob113 Registered Member Join Date: Oct 2010 Location: Virginia Beach Posts: 106	Intolerably loud air intake on NWB-150 I was getting fed up by the lackluster performance of my cpr bak-pak skimmer on my 20g so i decided to modify my sump a little and install the Reef Octopus NWB-150 i had sitting around from my 75g i took down. The air intake is SO LOUD!! Is this typical of these skimmers? The tank is in my bedroom so the quieter i can get it the better (was virtually silent before). I can use my reefkeeper to turn it off while im falling asleep, but would rather a proper fix. Here's a video to show how loud it is:

11/01/2012, 12:22 PM	#2
tkeracer619 Registered Member Join Date: Jan 2006 Location: Westminster, CO Posts: 17,289	Pull the "silencer" apart and put cotton balls in it. __________________ Hobby Experience: 9200ish gallons, 26 skimmers, and a handful of Kent Scrapers. Current Tank: Vortech Powered 600G SPS Tank w/ 100gal frag tank & 100g Sump. RK2-RK10 Skimmer. ReefAngel. Radium 20k.

11/01/2012, 01:17 PM	#3
wildman926 Registered Member Join Date: Feb 2011 Location: CTX Posts: 2,904	Your silencer does not look right. One end should be offset and the other centered. The way yours is now, it is like not having a silerncer on at all. Here is a pic of my old SRO 1000. You can see what i am talking about on the silencer. __________________ Beware of recommendations by those who don't actually use their recommendation!! The search function actually works quite well!! Tanks:Planet Aquarium 150g LPS, Planet Aquarium 90g Softie Last edited by wildman926; 11/01/2012 at 01:23 PM.

11/01/2012, 01:34 PM	#4
tkeracer619 Registered Member Join Date: Jan 2006 Location: Westminster, CO Posts: 17,289	Coralvue isn't known for their silencers . Cotton balls will do the trick. If it doesn't I can help you build one that will work with stuff you have around the house. You will need two plastic cups, cotton balls, and some tape. __________________ Hobby Experience: 9200ish gallons, 26 skimmers, and a handful of Kent Scrapers. Current Tank: Vortech Powered 600G SPS Tank w/ 100gal frag tank & 100g Sump. RK2-RK10 Skimmer. ReefAngel. Radium 20k.

11/01/2012, 01:44 PM	#6
tkeracer619 Registered Member Join Date: Jan 2006 Location: Westminster, CO Posts: 17,289	cool. We will work on it when you get home. Just a bad design. __________________ Hobby Experience: 9200ish gallons, 26 skimmers, and a handful of Kent Scrapers. Current Tank: Vortech Powered 600G SPS Tank w/ 100gal frag tank & 100g Sump. RK2-RK10 Skimmer. ReefAngel. Radium 20k. Last edited by tkeracer619; 11/01/2012 at 01:53 PM.

12/04/2012, 02:26 PM	#7
Cat Fish Registered Member Join Date: Feb 2012 Posts: 11	Did you ever find a solution? I'm having the exact same issue with a reef octopus skimmer (different model). My "silencer" has 2 intakes, both at the same height. Should they be off-set from each other?

12/04/2012, 09:13 PM	#8
sminker Registered Member Join Date: Aug 2008 Location: Kansas City, MO Posts: 612	I'll take a picture of my homemade silencer. Dead quite. Use a small Rubbermaid container, drill one hole in the bottom just big enough for the tube to squeeze through then drill two holes in the top and put a 2" long tube the same diameter as the main tube and close it up. I can only hear it when I open up the cabinet. __________________ 180G SPS Reef \| 8x80w T5HO Retro \| Apex Controlled

05/14/2013, 07:29 AM	#9
mrbee2828 Registered Member Join Date: Jan 2012 Posts: 67	Why did this thread die? What was the solution? I hate mine.