Below, the most common problems are presented, as well as the reasons and solutions for how you can restore clean and clear water in your pool.
| PROBLEM | REASON | SOLUTION |
| The water is green and unclear. The pool's floor and sides are slimy. | Algae growth. The water contains phosphate, which nourishes impurities. |
Adjust the pH count. Run the system until the water is clear. |
| Chlorine smell and irritation of swimmers' eyes. |
Chlorine dosage is too low and often the pH count is too high. | Adjust the pH count. Shock treatment. Add fresh water and run the system continuously. |
| The water is opaque, milky and unclear. | Hard water. Chalk particles suspended in the water. |
Adjust the pH count. Shock treatment. Use Active Pool Flocking Liquid. Run the system. |
| The water is green, but clear. Brown particles will often be seen when there is copper or iron in the water. |
Traces of iron in the water (yellow-green colour). | Adjust the pH count. Shock treatment. Use Active Pool Flocking Liquid and add fresh water. Run the system continuously. |
| Traces of copper in the water (turquoise colour). |
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| The water is brown and unclear. | There is iron in the water. | Adjust the pH count. Shock treatment. Use Active Pool Flocking Liquid and add fresh water. Run the system continuously. |
| The water is black and unclear. | There is manganese in the water. | |
| The pool's sides have a rough coating. | Chalk deposits from hard water. | Remove the deposits. Empty the pool of water and clean it. Keep the pH count at 7.0-7.4. |
| Corrosion. | pH count too low or chlorine content too high. | Adjust the pH count. Add fresh water. Do not use hydrochloric acid to reduce the pH count. |
| The water is green, unclear and does not react to the addition of chlorine. | Over-stabilisation (chlorine lock). |
Measure the stabiliser content. of the water. Ideal level is 30-50 mg/l. Level between 100-150 mg/l: Replace minimum half of the water. Level more than 150 mg/l: Replace 3/4 of the water. |
