Dosing top off water

[Cshradr7]

I know that this has probably been discussed to death but checking the past couple of pages i didn't find anything. I'm wondering if it would work to mix in different chemicals and have them added gradually with my top off water. I use an auto top off and have a spare pump that i could leave run in the top off water container to keep the chemicals suspended. I figure if i can determine how much i'm topping of per day, i can simply calculate that amount of chemical to add to the top off water. Let me know your thoughts or other places to look

thanks

 

[bertoni]

Some chemicals can be dosed that way. The most common approach would be to use limewater to add calcium and alkalinity. It's also possible to add one part of a two-part system, but not both.

What chemicals did you have in mind? Most shouldn't require a pump in the topoff container.