Thank you. I originally tested with strips but then tested with a test kit once I got it yesterday. Yes we have well water and I know we have iron in the water from old iron pipes. We have had a pool for like 5 years and I have fought with iron every time I shocked it. Last year After much research I took other pool owners advice and manually filtered the metals out by heavily oxidizing and taking a week to filter them out. Then I didn't have iron problems the rest f the summer. However, this was the first year we left the pool with water in it for the winter because we had a bigger pool to hard to take down. I think that I realized what is going on. I don't think it's algae because my chlorine holds for a few days. Plus when I reach down and touch the walls there's no slimy feeling. I don't see anything stck on bottom or sides anywhere. I think the bottom, which is blue is stained with yellow from the iron, thus making it appear my water is
Ight green. I'm going to bring my PH and alkalinity down. Once I get the water balanced can I use a small amount of iron out through my skimmer to circulate through the pool? That would help me get the stains off of pump, hoses, and liner. Will that add phosphates or anything unwanted to the water?