DIY pressurized ATO

[ScubaDre]

I'm about to add a Kalwasser ATO to my system and was going to do it the old-fashioned gravity way with a gallon container above my tank. But I really wanted it on the ground out of the way. Has anyone tried to use a pressurized container for an auto top off?
Thoughts...

 

[ScubaDre]

Testing now

 

[ScubaDre]

Retrofit with all contents in box. Cap adjusts drip rate. So far so good. Harbor freight $14.99, 2 gallon

 

[Ligershark]

are you using a float valve to open the water line?