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View Full Version : Which Auto Waterchange System: DOS or Renew


jlfalin
07/12/2017, 01:35 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, 11:41 PM
I have the renew and have nothing but good things to say about it.

ca1ore
07/15/2017, 05:30 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, 01:26 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, 02:31 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, 05:04 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, 07:49 PM
Renew is awesome. it is so easy to set up and use.

chris o
07/18/2017, 08:03 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, 11:37 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.