Which Auto Waterchange System: DOS or Renew

jlfalin · 07/12/2017, 12:35 PM

So I am in the process of setting up a system that will be in the 850gallon range. I am trying to finalize the plans for my fist room but to do that I need to decide on what auto water change system I will use. My options are the Neptune DOS and the Genesis Renew. If I go the Genesis route I will need to squeeze a 65-105gallon water container into the fish room. If I do the DOS then I will just have it pull from a tank in my utility room. My goal is to change 1% of the system per day so I will do 8.5gal with the DOS or 9 gallon with the Renew. Does anyone have any experience with one or both of these that can give some input. I feel the Renew is a larger up front investment but will last longer and be more precise/less recalibrating than the DOS. The DOS gives me the benefit of more free space in the fish room moving the mixing station to another location in my basement.

Socaltoaz · 07/12/2017, 10:41 PM

I have the renew and have nothing but good things to say about it.

ca1ore · 07/15/2017, 04:30 PM

The renew system is designed and built to do just that one very thing. DoS is a dosing system that can be purposed for AWC.

slief · 07/16/2017, 12:26 PM

Renew.. Best water change system ever made. I've had mine for years and wouldn't change it for anything. I've installed a few locally to me as well and everybody absolutely loves them.

CCWS · 07/16/2017, 01:31 PM

I have the DOS on my 125. I'm not sure it could do the volume of water changes you would need to do on a tank that size.

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WLachnit · 07/18/2017, 04:04 PM

I have a few friends that are successfully using the DOS, albeit on smaller systems. I've been wrestling with the same question for my 300g.

Hastened · 07/18/2017, 06:49 PM

Renew is awesome. it is so easy to set up and use.

chris o · 07/18/2017, 07:03 PM

I am currently in the middle of my 430/600 build and my "fish room" (QT, 350 gallon water and general storage) is 100ft away so I went with Stenner duel head pump and am very happy. I love the design of Renew but the distance from DT made it a problem.

Chris

Breadman03 · 07/18/2017, 10:37 PM

The DOS would probably do the job, but it really isn't the right tool for it. And I run my AWC with DOS.

07/12/2017, 12:35 PM	#1
jlfalin Registered Member Join Date: Apr 2010 Posts: 101	Which Auto Waterchange System: DOS or Renew So I am in the process of setting up a system that will be in the 850gallon range. I am trying to finalize the plans for my fist room but to do that I need to decide on what auto water change system I will use. My options are the Neptune DOS and the Genesis Renew. If I go the Genesis route I will need to squeeze a 65-105gallon water container into the fish room. If I do the DOS then I will just have it pull from a tank in my utility room. My goal is to change 1% of the system per day so I will do 8.5gal with the DOS or 9 gallon with the Renew. Does anyone have any experience with one or both of these that can give some input. I feel the Renew is a larger up front investment but will last longer and be more precise/less recalibrating than the DOS. The DOS gives me the benefit of more free space in the fish room moving the mixing station to another location in my basement.

07/12/2017, 10:41 PM	#2
Socaltoaz Registered Member Join Date: Jul 2013 Posts: 1,128	I have the renew and have nothing but good things to say about it. __________________ Please allow me to humbly share my build thread. Over 2.5 years of planning and construction of our dream home and dream tank. http://www.reefcentral.com/forums/showthread.php?t=2477486

07/15/2017, 04:30 PM	#3
ca1ore Grizzled & Cynical Join Date: Apr 2006 Location: Stamford, CT Posts: 17,319	The renew system is designed and built to do just that one very thing. DoS is a dosing system that can be purposed for AWC. __________________ Simon Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones! Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs

07/16/2017, 12:26 PM	#4
slief RC Sponsor Join Date: Sep 2009 Posts: 14,173	Renew.. Best water change system ever made. I've had mine for years and wouldn't change it for anything. I've installed a few locally to me as well and everybody absolutely loves them. __________________ Director Customer Support Royal Exclusiv USA For All Royal Exclusiv & Bubble King questions please refer to our Sponsor forum: http://www.reefcentral.com/forums/fo...play.php?f=745 Current Tank Info: 480G display mixed reef, 90G sump, 90G refugium, 60G display refugium. Check out my build thread: http://www.reefcentral.com/forums/showthread.php?t=1783476

07/18/2017, 04:04 PM	#6
WLachnit Registered Member Join Date: Feb 2008 Location: Bay Area, CA Posts: 1,722	I have a few friends that are successfully using the DOS, albeit on smaller systems. I've been wrestling with the same question for my 300g. __________________ (1) 300g mixed reef (Starfire DT) + 100g Sump (2) 100g Softie tank (Starfire DT) My Build Thread: http://www.reefcentral.com/forums/showthread.php?t=263472

07/16/2017, 01:31 PM	#5
CCWS Registered Member Join Date: Aug 2005 Location: Portland, OR Posts: 106	I have the DOS on my 125. I'm not sure it could do the volume of water changes you would need to do on a tank that size. Sent from my iPhone using Tapatalk

07/18/2017, 06:49 PM	#7
Hastened Registered Member Join Date: Jul 2015 Posts: 18	Renew is awesome. it is so easy to set up and use.

07/18/2017, 07:03 PM	#8
chris o Registered Member Join Date: Nov 2014 Location: Magnolia Texas Posts: 64	I am currently in the middle of my 430/600 build and my "fish room" (QT, 350 gallon water and general storage) is 100ft away so I went with Stenner duel head pump and am very happy. I love the design of Renew but the distance from DT made it a problem. Chris

07/18/2017, 10:37 PM	#9
Breadman03 New Old School Join Date: Feb 2012 Location: Luzerne County, PA Posts: 3,293	Which Auto Waterchange System: DOS or Renew The DOS would probably do the job, but it really isn't the right tool for it. And I run my AWC with DOS.