That is an interesting concept! Do you have a lot of evaporation? I really don't know the answer, but a good place to start would be to test the amount of chlorine and chloramines in your water supply first, to see how much is there to begin with. For me, my water changes are frequent enough that evaporation does not play much of a role, and what little there is just makes a little extra splash noise, but is not worth fixing.With this slow addition, do I need to worry about adding dechlor