Are you dealing with chlorine demand? If so, having an excessive amount of chlorine in your swimming pool can cause a myriad of problems.
It is worth noting before we get into excessive chlorine loss to remind pool owners that chlorine is the single most important chemical you need in your water to keep it clean and healthy.
If there isn't enough chlorine in your pool, that is not a good thing. Conversely, too much chlorine in your pool is also a bad thing.
You can see just how important regular water testing is, especially to monitor your chlorine levels as well as pH, total alkalinity, and calcium hardness.
Now, let's look at the issue of chlorine demand or excessive chlorine loss.
