I have some staining in my pool that I have determined is iron by using a vitamin C tablet. I read online that this comes from well water. We don't have well water. It can also come from rust of pipes due to low ph. I was having some problems with the ph and didn't do a great job keeping up with that over the winter, so I'm feeling like that is what it is. Do I need to get a pool company here to look at it, or can I fix this myself? If I remove the stains and get the ph balanced, will the rust continue or stop? thanks so much! feeling like a dummy.