ATO with AWC?

[Reefer911]

I’m considering AWC on my nano AIO. But I imagine without ATO or even topping off manually, that salinity would creep up over time. Is that the case? Those who do AWC, do you also top off with RODI?

 

[exnisstech]

I don't see an AWC system having any effect on evaporation so I would think an ATO is still going to be needed.

 

[KStatefan]

Yes I have ato in addition to my awc system.

 

[X-37B]

Yes an ato is necessary.

 

[Randy Holmes-Farley Verified Community Expert]

I use an ATO with AWC, but they are unrelated in most uses.

If the AWC adds and removes the same amount of water, then manual top off is fine. An ATO also works if the addition and removal are simultaneous, as they are in most cases.

 

[Randy Holmes-Farley Verified Community Expert]

Yes an ato is necessary.

Useful in all situations, but why necessary, or even more usual than normal when using an AWC?

 

[Randy Holmes-Farley Verified Community Expert]

I’m considering AWC on my nano AIO. But I imagine without ATO or even topping off manually, that salinity would creep up over time. Is that the case? Those who do AWC, do you also top off with RODI?

I changed your title. Always best to say what the topic is.

 

[Reefer911]

I changed your title. Always best to say what the topic is.

Thanks.

 

[X-37B]

Useful in all situations, but why necessary, or even more usual than normal when using an AWC?

Necessary no, but what % of reefers do it manually by hand?
Maybe noobs start with no ato but they have always been necessary on my systems for sg stability.
Should be the same for everyone else right?

 

[pooootiqe]

Kamoer has a device that does AWC and ATO:

Amazon product ASIN B0D4QNGJY8
If you already have two buckets for AWC, might as well have an extra for ATO :)

 

[Randy Holmes-Farley Verified Community Expert]

Necessary no, but what % of reefers do it manually by hand?
Maybe noobs start with no ato but they have always been necessary on my systems for sg stability.
Should be the same for everyone else right?

I’m all for ATO. It just is not needed “more” or “less” just because one is using awc, which is what the op was asking. :)

 

[X-37B]

I’m all for ATO. It just is not needed “more” or “less” just because one is using awc, which is what the op was asking. :)

Yea I get it but I have to disagree and believe that ato's are needed whether using the awc method or not.

 

[danlechem]

I have the kamoer x2s awc that also takes care of top off. Great piece of kit that I simply wouldn’t run a tank without.

 

[Gone Reefin’]

Yea I get it but I have to disagree and believe that ato's are needed whether using the awc method or not.

You are saying exactly what Randy is saying. He agrees that they are useful, but not anymore useful if you use AWC.