Awesome article Randy! Very informative as to the different options available, cost considerations, complexity, type of tank and goals. Case in point I was considering whether or not to get an automatic top off system with a 10 gallon reservoir and this article was very helpful in demonstrating how that purchase could make it easier to do limewater dosing or 2 part. There is still more research for me to do but at least it helps me plan things out for the future.