The pool I have on order is only one of two that my local pool company sells that specifically says can be used with a saltwater system. It has a 2" all resin track so I trust that part, but the top seat is technically steel although it's undercoated with copper-guard and coated with plastisol on the visual portion on top which is quoted as "giving it strength and resin-like rust protection." It worries me that it's 'resin-like' instead of all resin. Do you think it's safe for a SWG or would you not take the chance?