Flpoolgeek, I know this is an old thread (and you haven’t posted in awhile), but I notice that you have recently visited the forum…any updates on this DIY SWG controller project? Believe me, I know how projects get waylaid by other projects and/or life in general, haha. The price of chlorine has started me thinking about a SWG and wanted to see if you had any luck with your approach. Thanks.