Does it have to absolutely be submersible?
The cool thing about using a pump like an AquaLifter is that it pumps slowly. I just added Kalk into my ATO yesterday, and I didn't have to change anything about the setup. The AquaLifter pumps slow enough that I don't spike the tank when my ATO kicks on.
My ATO is set to activate every three hours. It's cuts on for an average of 30 seconds each time.
The cool thing about using a pump like an AquaLifter is that it pumps slowly. I just added Kalk into my ATO yesterday, and I didn't have to change anything about the setup. The AquaLifter pumps slow enough that I don't spike the tank when my ATO kicks on.
My ATO is set to activate every three hours. It's cuts on for an average of 30 seconds each time.