Hi, I have a 25,000 gallon vinyl lined pool that is currently sanitized with liquid bleach. When I went into our local pool store to buy the ever-expensive bleach, I asked them about the possibility of converting to salt water. The pool lady immediately discouraged me, mostly due to upfront cost, the cost to replace the salt cell every 5ish years, and then the need to stain and seal our concrete pool deck. She told me it's not worth it. Am I a conspiracy theorist, or is the reason she'd tell me that is because I spend $800/year at her store for liquid chlorine during the pool season? Everything I'm reading leads me to consider a SWG as a way to save cost and headache. Thank you!