Hello, newbie pool owner here!! We have a 33' round AG pool (28,000 gallons) with a 1.5 HP Hayward pump and Swimpro Voyager Cart Filter. It has an AquaSmarte Delivery System #5720 on it. Is this similar to the Baquacil system? It is getting to be expensive to keep operating it and I want to convert to the BBB system, but I am not sure if it will hurt anything to just switch? Also, I keep seeing on the forum references to "DE" What does DE mean? Thanks!!