We’re back with another blog post to help you solve any problems that might arise in your pool. Today we’ll be discussing greenish water, with green, brown, or black stains .
Don’t panic, the problem is algae. Yes, the presence of algae in the water is what causes our pool water to turn greenish, with green, brown, or even black spots .
To solve the problem, a superficial cleaning won’t be enough; we’ll need to do a deep clean to remove the stains and the greenish tint to the water. How?
First, we’ll check the stabilizer level in the water (you can use stabilizer test strips). If the value is higher than 75 mg/l, we’ll drain some of the pool water.
Next, we will verify that the pH level of the water is controlled at 7.0 and level it with Reindesa PH + Sodic Pool or Reindesa PH- Acid Pool .
And we checked the chlorine level:
If it’s correct: we put the filtration on 24 hours for two days, frequently cleaning the walls.
If it is low on chlorine: we will perform a shock treatment with Rein Granudalo Chlorine .
Once the pool is stabilized, we will use the specific concentrated algaecide for each type of algae , which will be recommended to you at any Reindesa store .
Maintaining water quality is our responsibility as pool owners to ensure it stays in good condition and prevents it from turning green or developing spots . And remember, if you need expert advice, you can find us at your nearest Reindesa store .

