A dirty hand, or paw, is a proverbial drop in the 10k gallon bucket for you.
Maybe your pool.has a higher than average amount of organic matter blowing/falling in. The solution is to 'run hot' and add a couple PPM extra FC to your target.
Maybe your pool.has a higher than average amount of organic matter blowing/falling in. The solution is to 'run hot' and add a couple PPM extra FC to your target.