OVERALL PROBLEMS WHEN OPERATION OF THE SWIMMING POOL 
1. ARRANGEMENT:

There are 3 types of algae that can survive in aquariums: green, black and yellow. All three types can 
be denatured in one way: 
– First check the pH and correct for 7.2 to 7.6. Then use 
the SOCK IT method to process. 
– After adjusting pH sterilized by strong chlorine. 
– After chlorine, scour the walls and bottom of the tank because algae or algae 
grow on the walls and stairs of the tank. 
2. DRAGON WATER:
There are many causes of turbid water. 
 – Due to the waste of many swimmers. 
 – The influence of algae. 
 – pH is too high. 
 – To solve this problem first check and adjust swimming pool water for 
pH 7.2 ÷ 7.6 and total solute: 60 ÷ 100mg / l. 
 – Check for excess chlorine (2-3mg / l). 
 – If muddy water can be mossy, sterilize with high chlorine 
content. 
 – If it is still opaque, check the filter system and may have longer filtration time 
. 
3. ALSO: 
 – Scaling may be white, gray or brown, as a result of high alkalinity 
and pH to prevent scale concentration of 7.2 ÷ 7.6 and alkalinity of 60 ÷ 
100mg / l. 
4. BREATHING:
 – Contamination is usually caused by rust in water if the water in the tank is oxidized by 
metal and metal oxide clings to the wall of the spill tank. 
 – To prevent stains always correct the water regime for the tank. 
5. SURFACE: 
Many times after swimming the swimmer’s eyes begin to red, it is very annoying for 
the swimmer to do it due to the following reasons: 
 – pH is not correct. 
 – Too little chlorine.  
9 
To avoid that need: 
 – Check and correct the pH, the chemical after the bottle chemical containers 
pH: 
+ pH too high: for Sodium bisulfate 
+ pH too low: for Sodium carbouate 
For filtration system circulatory , the automatic set will automatically correct the pH 
 – Check the residual chlorine (1 ÷ 3 mg / l).
6. COLORED WATER:   
Dark brown, mixed green. 
– Check and adjust the PH: 7.2 ÷ 7.6 (preferably from 7.4 ÷ 7.6). 
– Strongly disinfect the swimming pool using the SOCK IT method