My opinion on that is that this is such a small amount of salt that it really won't matter. There is already chlorine in the pool. The bottom track is designed to be protected against chlorine. The reason salt is corrosive is because of the chlorine in the salt molecule.

If we were talking about raising the salt content in our pool water to 20,000ppm or more (to the salinity levels in ocean water), then I too would be concerned about corrosion. But we're talking about 1200 - 1500ppm, which is half or less than the 3000 - 3700ppm that recommended by most SWGs.

I haven't found any corrosion warnings associated with any SWGs.

I think that at the levels we are talking about here, there are no drawbacks at all, only benefits.

Oh, and I purchased another bag of salt to put in the water this evening.