Just got introduced to this site couple of weeks ago. Converted from Baquacil to chlorine using TFP instructions and their testing kit. Sparking clear water now, but am looking to make chlorination easier and am thinking of SWG. What are some good and tested brands or what have you all been using and are happy with. And what should I look out for. Is the Intex from Walmarts any good for $139.00. Thanks in advance for your input.