We have a inground liner pool with 20000 gallons. It is a salt water pool. I noticed some red rusty stains on steps and the water has a metal taste to it. How do I get rid of the stains and do wr have too much iron in the pool?
Yes - it sounds like you have too much iron in the pool. There are special treatments for the stains and metal removing agents for the iron which you will want to add any time you add the source water that contained the iron before the staining. As you will see in the clean up process, removing the iron stains is not easy.