The corrosive properties of water are not affected by its hardness. This is a common misconception that can be explained by the types of source water that yield naturally soft or naturally hard water. If your water is naturally soft, there is a good chance it is also corrosive due to other factors.
Surface water sources that supply naturally soft water often have low (acidic) pH, low TDS (total dissolved solids), and high dissolved gas concentrations such as oxygen and CO2 that can contribute to corrosion. Naturally hard water often comes from a well and has higher pH, higher TDS, and lower dissolved gas concentrations. These correlations are due to the water source and are not caused by the hardness of the water.
If your water has been softened using sodium cycle ion exchange in a water softener, the corrosive properties of your water are not affected. A water softener removes calcium and magnesium ions and replaces them with an equivalent amount of sodium ions. This process has no significant effect on the corrosive properties of the treated water.
Removing hardness by reverse osmosis (RO) or deionization (DI) can significantly increase the corrosive properties of water because they both drastically decrease the dissolved solids in the water, and the latter can alter the pH. This sort of filtration is beyond the scope of the question.
You still must maintain the correct pH and alkalinity levels in your pool, though your water softener will not affect these levels. Your local pool supply store can furnish you with the proper test kits and chemicals to accomplish this.
Softened water is perfectly pure, wholesome and safe to drink. Some people especially like it because it has a "silkier" texture than hard water. Overly-softened water (unfortunately, rather common) has an unpleasantly "slick" taste and feel. Softened water has a higher sodium content than most plain tap water, but not excessively so, unless it has been excessively softened (as mentioned above). Properly softened water does not jeopardize your sodium intake if you are monitoring that, and your own doctor will verify that.
What's the most outdated thing you still use today?
How do you get 1000000 robux for free?
The more you take the more you leave behind what am I?
Why do flies rub their hands together?
How many people signed the Declaration of Independence on July 4 1776?
A farmer has 19 sheep All but 7 die How many are left?
What does program mean in brain teaser?
How many square miles in a 5 mile radius?
What were George Washingtons false teeth made from?
Who was Yale University named after?
What determines whether you are left or right handed?
What would you do if the internet was suddenly gone?
What is the longest plate appearance in MLB history?
What is the official name of the Statue of Liberty?
Why can't we remember our dreams?
How are people chosen to be featured on U.S. currency?
What are the benefits and possible pitfalls of having an official curriculum?
Does Jeff Lynne have grandchildren?
What negativity did Paul Harvey report about Andrew Wommack?
ABCS helps students of anatomy recall what?
What is the conflict of the story our lady's juggler?
What do scientist do before forming an hypothesis?
What wounds did wilfred Owen have?
BA-28 which is a recommended water-skiing safety practice?