Tonight I add salt to my non SWG above ground pool

[Poolsean]

Gerri asked...
"I have a 8500 gallon in ground fiberglass pool and I want to add salt.

Here's my question: since I have a problem with iron stains would it be ok to get this kind of salt:
http://www.lowes.com/lowes/lkn?actio...658&lpage=none

The thing I don't understand.. they all say pure salt so how can they be iron fighting, etc. ?"

Gerri, avoid this type of salt. The iron fighting salts have additives that is not good and should not be added. Use water softener salt without any additives and at least 99.5% pure sodium chloride.

Interestingly, I suggested this adding of salt to a non Salt Chlorine Generator pool, oh, say, LAST year? Glad the benefits are being realized.

Question to everyone though....why only add salt to 1000 ppm? The higher the salinity, the closer to your bodies salinity level, thus the more comfortable it will be.

Answer to the question about above ground pools and tracks, I disagree that you're only dealing with 1000 - 1500 ppm of salt. While this is true with the pool water, splash out water that ends up in the tracks will eventually evaporate, increasing the salinity level as the water evaporates. Realistically, your salt concentration of the water in the tracks can increase way past the 35000 ppm of ocean water.
I recommend that you occasionally wash down the sides of your pool or you will see corrosion over time. Regular rain fall or your sprinkler system hitting the outer pool walls will keep the salt concentration down.