DIY ATO Auto Top Off System

[ReefNerd76]

Here is a short explanation of how I built my ATO. It works great, it's worth the time to save money, trust me.

 

[redfishbluefish]

Pretty ingenious! The old water cooler jug method for ATO....no pumps, no sensors, no electricity.

The only issue I see is that I go through about 1 to 1 1/2 gallons a day. I'd have to top off that 20 ounce bottle you are using too many times!

Nicely done video.

 

[Cory]

im worried saltwater will get in the bottle. No? Can you draw a pic of it?