Why treat swimming pool water?

Every day, microorganisms, contaminants, algae spores, bacteria, dust, soot and dirt are introduced into the water of your swimming pool, which are harmful to the health of swimmers. 

Dirt particles and turbidity are eliminated by a good filtration system. 

For microorganisms, algae, bacteria and viruses, an appropriate chemical treatment is necessary.

How to calculate the volume of water in your pool: 

Rectangular pool: Length (m) x Width (m) x Average height = Volume in cubic meters 

Round pool: Length (m) x Width (m) x Average height x 0.79 = Volume in cubic meters 

Oval pool: Length (m) x Width (m) x Average height x 0.89 = Volume in cubic meters

Free-form pool: Length (m) x Width (m) x Average height x 0.85 = Volume in cubic meters

Problem: green water

CAUSE: Algae proliferation due to insufficient chlorination 

SOLUTION: Perform a shock chlorination with 56% Chlorine in the amount of 15gr/mc, after having adjusted the pH between 7.2 and 7.6; Increase the pump operating hours, dose flocculant (only with sand filter). If the problem occurs frequently, use a concentrated anti-algae product.

Problem: milky water

CAUSE: basic pH higher than 8 

SOLUTION: Restore the pH to 7.2 and perform a shock chlorination with 56% chlorine in the amount of 15gr/m3.

Problem: cloudy water

CAUSE: Insufficient filtration 

SOLUTION: Increase the pump operating hours, dose flocculant (only with sand filter).

Problem: brown/reddish water 

CAUSE: Presence of iron and/or manganese 

SOLUTION: Adjust the pH to 7.2, perform a shock chlorination (15gr/m3). For maintenance use a sequestrant.

Problem: unpleasant chlorine smell, eye irritation 

CAUSE: Low chlorine level, presence of chloramines. 

SOLUTION: Adjust the pH to 7.2, dose specific granular active oxygen to break down chloramines, or perform a shock chlorination in the quantity of 15gr/m3.

Problem: eye irritation without chlorine smell 

CAUSE: Excess chlorine in the pool 

SOLUTION: Reduce the chlorine with a specific product (chlorine reducer), bring the pH value between 7.2 and 7.6.

Problem: oxidized metal parts, brown stains 

CAUSE: pH too low, less than 7 

SOLUTION: Adjust the pH between 7.2 and 7.6.

Problem: Stains on the walls and edges

CAUSE: Presence of algae due to insufficient chlorination.

SOLUTION: Perform a shock chlorination, scrub the walls with a brush, increase the maintenance chlorine rate to at least 1.5, use a concentrated anti-algae product.

Problem: Dark stains on the waterline

CAUSE: Grease residues, oils, soot and smog.

SOLUTION: Clean with an alkaline detergent with a high degreasing action and with an abrasive pool brush. To prevent this problem, rinse the waterline once every two weeks with liquid chlorine.

Problem: rough walls with whitish stains

CAUSE: Very calcareous water

SOLUTION: Descale the walls with the pool empty with an acid-based descaler with a strong descaling action, when filling add a descaler, preventive anti-corrosion product.

Opening a swimming pool: 

1. Clean the walls from whitish encrustations with an acid-based product and the dark halo on the waterline with an alkaline detergent product. 
2. Backwash followed by rinsing the filtration system (for sand filters), if the sand is encrusted with limestone, wash it with a preventive filter detergent. 
3. Check the pH of the water and if necessary bring it to values ​​between 7.2 – 7.6. 
4. Perform a shock chlorination with 15 g of granular chlorine at 56% or 63% for every cubic meter of water, then keep the filtration system running for at least 24 consecutive hours. 
5. The next day add an anti-algae product with preventive action against the proliferation of algae.

Pool maintenance:

1. Check the pH with a test kit every day, keeping it between 7.2 – 7.6. 
2. Add 2 to 4 grams of 56% or 63% granular chlorine per cubic meter of water every day, or insert a 200-gram trichlorine tablet per 10-15 cubic meters of water every week into the skimmers or dispensers.
   ATTENTION: chlorine in powder or tablets in direct contact with layner or PVC coatings can stain. 
3. Adjust the dosage to obtain a chlorine value between 0.5 and 1.2 mg/l. 
4. Dose an anti-algae product for preventive use once a week. 
5. Backwash followed by rinsing the filter at least once a week.

When going on vacation: (treatment for 2/3 weeks) 

1. Adjust the pH of the water. 
2. Perform a shock chlorination with 15g of 56% or 63% granular chlorine for every cubic meter of water. 
3. Insert 3 200-gram trichlorine tablets into the skimmers for every 10 cubic meters of water. 
4. Keep the pump on for at least 8/10 hours a day. 
5. If possible, cover the pool with a winter cover.

Closing for a period of inactivity: 

1. Perform a backwash followed by rinsing the filter. 
2. Check the pH of the water and bring it to 7. 
3. Perform a shock chlorination with 15g of 56% or 63% granular dichlorine for every cubic meter of water, keeping the filtration system running. 
4. The next day, add a specific WINTERING product and cover with a sheet, keep the system running for another 5 hours, then dismantle the pump, empty it of the water contained and store it in a dry environment. 

ATTENTION: It is advisable not to leave chlorine tablets in the skimmers during the winter shutdown period as they can cause problems with the pipes.