I'm asking this question for a lady at my church. She just got an 18 foot above ground pool. Water was fine...chlorine was reading fine, but it was showing NO PH (the water was CLEAR though). She's using a "frog". That's some kind of special thing that releases the chemicals into the pool and you have to buy "backpacks" to put in it. We were supposed to get one with our pool, but we didn't want it, so we swapped it for a solar cover.
Anyways, she said her PH wasn't reading and the pool store made her buy some kind of chemicals. She put them in and her water is now milky. They then had her buy something else and it's not helping. She has a sand filter, is running it 24/7 and brushing and vacuuming daily. Any ideas on what the problem is? She has nobody to help her with the pool ( her husband has health issues and just got out of the hospital. He's not capable of helping her). I really want to help her get her pool cleared up. Thanks everyone!