Salt systems are sweet I use to not like but much better with reverse polarity now so cell self cleans during normal operation. Get your ph and alkalinity where they need to be and calcium level . With a salt pool you will Eventually need to add stabilizer so you can keep cyanauric acid level raised to around 20-30 ppm . Salt is free chorine where traditional pools use tabs trichlor which are stabilized protected from sunlight however cyanauric acid goes off the charts producing ineffective chl. Check around your equipment for an anode. In plumbing between filter and heater it would have a grounding wire attached to it. If you don’t have one get one installed it will protect your equipment if pool not properly bonded it’s called a zinc anode.