my 16x48'' intex pool that i put up in 2010 has rusted severely to the point that i had to take it down. it would not have lasted another year. i was using the intex SWG and while it works great i have come to the conclusion that the salt is the culprit. i will post some pics soon of the damage but meanwhile i will be upgrading to the 18x52 for the grandkids who have gotten bigger anyway. i will use traditional methods to sanitize the pool but the salt is out. the pool was only 3 years old and i have several neighbors who have the intex ultra frame pools but did not use the SWG and after 3 or 4 years of use they have no rust issues at all. my next door neighbor has the 20x48 blue intex frame pool and this will be his 7th year with almost zero rust only minor spots that i have seen. i thought i would post this to inform fellow intex owners of my experience and my plans going forward.