COR 20 Hard Plumbing Noise

Member No. 1 · 02/01/2018, 05:24 AM

I'm in the process of upgrading my 80 to a 120, and I plan on using the COR 20 for a return pump. Currently I'm working on the plumbing design, so I would like to hear from those of you who are running a COR 20 and have it hard plumped.

How is the noise?

Any vibration transferred to the plumbing?

Now I know I could use a piece of flex between the pump and the return line, but I want that to be the last resort.

Thanks for any feed back you can provide.

alemone · 02/01/2018, 11:41 AM

I just plumbed my 20.
You can hardly tell it's on. Especially replacing a power-hungry Iwaki.
No vibrations that I can tell. Mine is external.
One thing to keep in mind- the plastic slip connectors are quite short. I used flex PVC and it leaked and then came apart easily by hand. I had to redo it with lots of PVC cement. One would probably not have the same issue with hard PVC.
Also, make sure you use a lot of tape or paste for the threaded connections. They leak easily (not necessarily a problem unique to COr).

Member No. 1 · 02/01/2018, 01:08 PM

Thanks for the info!

ca1ore · 02/02/2018, 12:23 AM

Quote:

Originally Posted by alemone

I just plumbed my 20.
You can hardly tell it's on. Especially replacing a power-hungry Iwaki.
No vibrations that I can tell. Mine is external.
One thing to keep in mind- the plastic slip connectors are quite short. I used flex PVC and it leaked and then came apart easily by hand. I had to redo it with lots of PVC cement. One would probably not have the same issue with hard PVC.
Also, make sure you use a lot of tape or paste for the threaded connections. They leak easily (not necessarily a problem unique to COr).

I had both of these problems with my Vectra. Flex PVC not recommended with shallow shoulder fittings (thus no DWV); these pumps aren't NPT so if you do try to use NPT fittings they are loose.

alemone · 02/02/2018, 04:54 AM

Quote:

Originally Posted by ca1ore

I had both of these problems with my Vectra. Flex PVC not recommended with shallow shoulder fittings (thus no DWV); these pumps aren't NPT so if you do try to use NPT fittings they are loose.

I only used the supplied connectors. They are BSPP.

dentnshell · 02/11/2018, 06:48 PM

My COR 20 is way quieter than my old sicce 5.0 (Hard Plumbed. Not to mention the soft start makes post feed start ups a fraction of the noise.
My 3 MP40's make more noise than the COR 20.
skimmer is the loudest part of the system. (Reef Octopus SRO 2000 )

Member No. 1 · 02/12/2018, 04:04 AM

Thanks for the feed back.

02/01/2018, 05:24 AM	#1
Member No. 1 Ver. 2.1 Join Date: Mar 2005 Location: Rehoboth, MA Posts: 1,803	COR 20 Hard Plumbing Noise I'm in the process of upgrading my 80 to a 120, and I plan on using the COR 20 for a return pump. Currently I'm working on the plumbing design, so I would like to hear from those of you who are running a COR 20 and have it hard plumped. How is the noise? Any vibration transferred to the plumbing? Now I know I could use a piece of flex between the pump and the return line, but I want that to be the last resort. Thanks for any feed back you can provide. __________________ Pete "I never make mistakes... I thought I did once, but I was wrong" Current Tank Info: In the process - http://reefcentral.com/forums/showthread.php?t=2661614

02/01/2018, 01:08 PM	#3
Member No. 1 Ver. 2.1 Join Date: Mar 2005 Location: Rehoboth, MA Posts: 1,803	Thanks for the info! __________________ Pete "I never make mistakes... I thought I did once, but I was wrong" Current Tank Info: In the process - http://reefcentral.com/forums/showthread.php?t=2661614

02/11/2018, 06:48 PM	#6
dentnshell Registered Member Join Date: Mar 2013 Location: Oklahoma Posts: 104	My COR 20 is way quieter than my old sicce 5.0 (Hard Plumbed. Not to mention the soft start makes post feed start ups a fraction of the noise. My 3 MP40's make more noise than the COR 20. skimmer is the loudest part of the system. (Reef Octopus SRO 2000 ) __________________ DSA 105 Current Tank Info: DSA rimless 105

02/12/2018, 04:04 AM	#7
Member No. 1 Ver. 2.1 Join Date: Mar 2005 Location: Rehoboth, MA Posts: 1,803	Thanks for the feed back. __________________ Pete "I never make mistakes... I thought I did once, but I was wrong" Current Tank Info: In the process - http://reefcentral.com/forums/showthread.php?t=2661614

02/01/2018, 11:41 AM	#2
alemone Registered Member Join Date: Jan 2016 Posts: 226	I just plumbed my 20. You can hardly tell it's on. Especially replacing a power-hungry Iwaki. No vibrations that I can tell. Mine is external. One thing to keep in mind- the plastic slip connectors are quite short. I used flex PVC and it leaked and then came apart easily by hand. I had to redo it with lots of PVC cement. One would probably not have the same issue with hard PVC. Also, make sure you use a lot of tape or paste for the threaded connections. They leak easily (not necessarily a problem unique to COr).