I am serioulsy considering installing a SWG system on my 27' Radiant Metric Pool that I installed (inground) last spring. Pool walls are aluminum with a double layer acrylic coating. The manufacturer (Radiant Pools) claims a lifetime warrantee on the pool. Can anyone advise if a SWG/salt will corrode my pool walls. I've read many mixed reviews on multiple sites. I want to install the SWG for the convienience of it, but also don't want to damage the pool. Thanks.