My water looks clear and sparkly. I have been using bleach for 2 years, this yr pool was pretty clear on opening, got some brownish algae a few days later so I poured in the bleach each day until it was clear. I test my own water usually, but today I got the pool store to check it, the numbers are as follows:
Was told my chlorine is locked up, not sure I have ever heard that term before. What are your thoughts?