As a pool service contractor, I probably take two to three phone calls a week from customers with questions about metal stains in their pool or spa. One question I get frequently is, “How do I get rid of green stains (brown stains, red stains, you name it)?” Treatment for these stains can be a headache, and takes some effort to be successful. Depending on how tough the stain is, how long the stain has been there, and water balance conditions, multiple treatments can sometime be necessary to fully remove the stain.
Since stain removal can be a time-consuming and, sometimes, expensive process, I am amazed that customers never ask me these two questions: “Why is there metal in my pool?” and “How do I prevent metal stains?”
Why is there Metal in My Pool?
Most of us would not eat a whole chocolate cake and then wonder why we felt like going into hibernation soon afterwards. We understand that putting massive amounts of sugar into our bodies is going to cause problems. Rather than dealing with the effects of over-indulgence, most of us prefer to act proactively and prevent a sugar crash by stopping after one slice of cake.
Fortunately, pools and spas do not eat cake. They do, however, need water. And what does that water contain? You guessed it—metals. The water most of us fill our pools and spa with is laden with metals of various types and, left untreated, will have a negative effect on the finish.
How can you respond proactively to the metals in you water, so that you do not have to deal with the stains they will cause later? I’m glad you asked that!
How Do I Prevent Metal Stains?
Unless you stop putting water in the pool or spa, the metal will always be there, looking for an opportunity to create stains. The solution recommended by pool professionals is the use of a sequestering agent, like Lo-Chlor Metal Gone, that binds to the metal particles in the water and prevents them from staining the finish of your pool or spa.
Although sequestering agents do their job well, adding water also adds metals, so you need to replenish the agent every time you add water. Adding a sequestering agent to your weekly maintenance routine, according to manufacturer’s directions, is a great way to prevent stains from occurring, eliminating the need to deal with them later on.
Now, if they only made something like this for cake…