It takes ages to construct a pool. After this, owning a swimming pool becomes a matter of pride and honour. You become the talk of the town and all your colleagues envy you. They talk about how you have a pool and how amazing it must be to have one. You may even invite some of them to visit your pool. However, when they come, all their ideas about a crystal clear blue pool are shattered. They find that your pool is stained in many places. These stains can really kill the aesthetic effect of your pool and make it look unclean and unhealthy.
Unfortunately, staining is something that pools suffer from regularly. Your pool can get stained after the first few months since its commission itself. Worse still, all stains are not of the same type and cannot be treated in the same way. Stains can really spoil the look of your prized possession. In this segment, we will discuss the most common types of pool stains.
- Blue-green stains
Blue-green stains appear on water or on the surface of the pool, but they don’t make the water cloudy. The main cause of this type of stains is excessive Copper in the water. This excess Copper may be from algaecides, older copper plumbing, heat exchangers or fill water. You can use Citric acid or Ascorbic acid directly on the stain to get rid of it. You can add an additional sequestering system to the filters so that they can remove the excess copper. If you are using cleaning mechanisms involving phosphoric acid, then you will have to ensure that the acid is removed later on. If the water also appears cloudy, then the cause of this stain may be some algae and you will have to use an algaecide.
- Purple precipitate
This stain appears on pool water surface, skimmers, pool cleaners or tile lines. These stains appear due to Copper cyanurate. When cyanuric acid levels are over 100 ppm, these stains will start to appear as a symptom. You will have to drain the water to bring the cyanuric acid level to about 50 ppm. After this, have the water in your pool tested once.
- Brown Stain
This appears on the pool surface or in the water. These appear due to pool heaters or lawn fertilizers. They are primarily due to dissolved iron and manganese in the water. To treat this, you will have to procure and add a sequestering agent, usually on a weekly basis. Use a non-phosphate based sequestering agent otherwise, you will have to deal with elevated phosphate levels later.
- Shaped brown stains
Some brown stains may be shaped like leaves or other organic debris. This is because organic matter falls into the pool and settles which results in the staining. Using Citric acid or Ascorbic acid directly on the stains can solve this problem. These stains may also automatically disappear as normal pool chlorine levels are established.
- Yellow Stains
These stains aren’t exactly stains but they look like them. Yellow stains can be caused by settled dust or pollen. To solve this, you need to scrub out the stain and clean the pool. If after scrubbing the pool, the yellow stains return on the pool walls then the stains may actually be some yellow algae which need to be treated with an algaecide.
These stains sure sound like bad news. Worrying about pool staining is the last thing you would’ve thought of while constructing a pool. However, stains shouldn’t make you regret your decision of getting a pool for yourself. Professional management services like United Pools are available which manage your pool for you while you enjoy.