Which is better pentair or goldline salt system for pools?

Both have a great presence in the marketplace, and both are provided by the largest players in the swimming pool industry--Hayward (Goldline) and (Jandy) Pentair. There are others as well like Resilience, Auto-Pilot, Prozone Combo Salt/ Ozone, others. Some use higher levels of salt which has been causing corrosion and also metal bonding/fusion. What I would recommend is if you purchase any salt system, also purchase an Ozonator (preferably a VUV Very Ultra Violet, not a Corona Discharge System). The Ozone does much of the work that the chlorine normally does. By using ozone, you reduce the amount of chlorine required, and most often you can turn the Jandy or Goldline outputs much lower prolonging their life cycle.