Hello! My name is Mike and I recently had a 21 foot round above ground pool installed. Upon set up of the pool I was given my first batch of chemicals which was very costly and instructions on the Natures 2. After talking to a friend who uses the Bleach, Borax and Baking Soda as their pool maintenance, we are interested in coverting to the grocery store method. My question is...How do I convert to this system and get rid of the Natures 2? From reading on this site it is my understanding that you can't use the Natures 2 along with the grocery store method. Can I just take off the Natures 2 system and start using the grocery store method or do I have to wait? Thanks for any help. I am new to this whole pool experience so any help is greatly appreciated. We have a cartridge filter if that makes any difference.