Nancy,
You have to drip kalk solution(mixture) into the tank water slowly as it has a PH of like 13 or maybe higher,not sure.
So say your 29 gallon drops a few inches in like 3 days.
Then you dump like 2 gallons in to make up for it.........not good.Your top off (ATO) will just top of when ever the tank calls for it.This will only alow say maybe a quart of kalkwater mixture to your tank over the coarse of a day.
You have to drip kalk solution(mixture) into the tank water slowly as it has a PH of like 13 or maybe higher,not sure.
So say your 29 gallon drops a few inches in like 3 days.
Then you dump like 2 gallons in to make up for it.........not good.Your top off (ATO) will just top of when ever the tank calls for it.This will only alow say maybe a quart of kalkwater mixture to your tank over the coarse of a day.