I have a 24ft round doughboy with the deep dig option, i'm told it's 18,700 gallons! it's in full sun all day (chlorine hog) I have been looking into a swg and when i spoke to a guy i know that works where i bought my pool,i was told that doughboy will no longer warranty my pool w a swg and they are having problems with the salt content causing corrosion ! Then he tries to sale me the pool frog system! has anyone on here heard of this ??? sounds like more pool store Crud to buy to me ! i could be wrong ! any input from u guys would be valued and appreciated !!! thanks