Products

IRRITATION TO EYES AND SKIN IN A SWIMMING POOL

If you get a burning sensation when you open your eyes underwater or an itching sensation on your skin, these are some of the possible causes:

  • badly adjusted pH
  • Presence of chloramines (combined chlorine, strong smell of chlorine)

SUGGESTED SOLUTIONS

  • badly adjusted pH: Adjust pH to between 7.2 and 7.8. The pH of the human eye is 7.5.
  • Presence of chloramines (combined chlorine): Carry out a chlorine-free shock treatment, often supplied under the name "Oxy", one 500g sachet for 40,000 L of water or less, or two 500g sachets per 40,000 L of water if more.

PREVENTATIVE TREATMENT

  • badly adjusted pH: Maintain pH at between 7.2 and 7.8.
  • Presence of chloramines (combined chlorine): Add a 500g sachet of chlorine-free Shock-treatment, often supplied under the name "Oxy", for 40,000 L of water or less or two 500g sachets per 40,000 L of water if more. This will get rid of the smell of chlorine and avoid eye irritation. Chlorine-free shock treatments increase the effectiveness of water sanitation and help to keep the water clear.

* To keep the water clear and transparent throughout the bathing season, get your water tested regularly by your specialised suppler, carry out any necessary adjustments and maintain the following parameters: total alkalinity, calcium harness and stabiliser. Ideally this should be done during the week following the commissioning of your swimming pool, then in early June and at the end of July.

Source: RBF international

SCALE BUILD UP IN THE SWIMMING POOL

You will know if there is scale in your swimming pool if you see white, grey or brown sandy deposits forming on the walls or in the equipment. As a result the walls of the pool may become rough and water circulation may be affected. Here are some of the possible causes:

  • High pH
  • High total alkalinity
  • High Calcium hardness

SUGGESTED SOLUTIONS

  • High pH: Adjust pH to between 7.2 and 7.8. Lower this using pH-.
  • High total alkalinity: Adjust alkalinity to between 80 and 120ppm. Lower the alkalinity using Muriatic acid.
  • High Calcium hardness: Adjust the Calcium hardness to between 200 and 300ppm (No product exists to reduce Calcium hardness).

PREVENTATIVE TREATMENT

 

 

  • High pH: Maintain pH at between 7.2 and 7.8.
  • High total alkalinity: Maintain alkalinity to between 80 and 120ppm.
  • High Calcium hardness: Maintain Calcium hardness to between 200 and 300ppm. Add 30mL of Anti-scale or Metal control per 10,000 L of water, once a week.

* If you have a water heating system for your swimming pool, Anti-scale and Metal control can help to protect your water-heating system from corrosion and scale build-up. 1 litre should be emptied into the swimming pool twice during the summer.

* To keep the water clear and transparent throughout the bathing season, get your water tested regularly by your specialised suppler, carry out any necessary adjustments and maintain the following parameters: total alkalinity, calcium harness and stabiliser. Ideally this should be done during the week following the commissioning of your swimming pool, then in early June and at the end of July.

Source: RBF international

CORROSION OR LINER WRINKLING/DISCOLOURING IN THE SWIMMING POOL

Is your equipment rusty? Are your liners and accessories becoming discoloured? Is your liner becoming wrinkled? Here are four factors which may be related to these issues:

  • Low pH
  • Low total alkalinity
  • Low Calcium hardness
  • Chlorine treatment over 3ppm

SUGGESTED SOLUTIONS

 

  • Low pH: Adjust pH to between 7.2 and 7.8. Increase the pH using pH+.
  • Low total alkalinity: Adjust alkalinity to between 80 and 120ppm. Increase alkalinity using Alkalinity control.
  • Low Calcium hardness: Adjust Calcium hardness to between 200 and 300ppm. Increase Calcium hardness using Calcium Plus.
  • Chlorine treatment over 3ppm: Adjust chlorine treatment to between 1 and 3ppm.

PREVENTATIVE TREATMENT

 

  • Low pH: Maintain pH at between 7.2 and 7.8.
  • Low total alkalinity: Maintain alkalinity to between 80 and 120ppm.
  • Low Calcium hardness: Maintain Calcium hardness to between 200 and 300ppm.
  • Chlorine treatment over 3ppm: Maintain chlorine treatment at between 1 and 3ppm.

* To keep the water clear and transparent throughout the bathing season, get your water tested regularly by your specialised suppler, carry out any necessary adjustments and maintain the following parameters: total alkalinity, calcium harness and stabiliser. Ideally this should be done during the week following the commissioning of your swimming pool, then in early June and at the end of July.

Source: RBF international

MURKY WATER IN THE SWIMMING POOL

Murky water means you cannot see the bottom of your swimming pool and is often caused by the following factors:

  • High concentration of suspended particles in the water
  • Insufficient chlorine treatment
  • High pH (reduces the effectiveness of the chlorine causing the water to become murky)
  • Filtration system problem (the sand may be clogged)

SUGGESTED SOLUTIONS

  • Insufficient chlorine treatment: Add 350g of Shock-treatment per 10,000 L of water.
  • High pH: Lower pH to between 7.2 and 7.8 using pH-.
  • Filtration system problem: Check that the skimmer and the pump are not blocked and that the filter is operating normally. At the start and the end of the season be sure to clean the sand in the filter using a sand filter Cleaner.

PREVENTATIVE TREATMENT

 

  • High concentration of suspended particles in the water: Add 30mL of liquid clarifier per 10,000 L of water or one sachet of pre-dosed Clarifier sticks per 75,000 L of water into the skimmer.
  • Insufficient chlorine treatment: Maintain chlorine treatment at between 1 and 3ppm at all times.
  • High pH: Maintain pH at between 7.2 and 7.8 at all times.
  • Filtration system problem: Be sure to carefully empty the strainers and that the filter is operating correctly. Back-wash the filter.

* To keep the water clear and transparent throughout the bathing season, get your water tested regularly by your specialised suppler, carry out any necessary adjustments and maintain the following parameters: total alkalinity, calcium harness and stabiliser. Ideally this should be done during the week following the commissioning of your swimming pool, then in early June and at the end of July.

Source: RBF international

PRESENCE OF ALGAE OR SLIPPERY LINER SURFACE IN THE POOL

The problems associated with algae and a slippery liner can be caused by one of these two factors:

  • Green, brown or yellow algae: insufficient chlorine treatment
  • Black algae: (also) insufficient chlorine treatment

SUGGESTED SOLUTIONS

 

  • Green, brown or yellow algae: Adjust pH to between 7.2 and 7.8. Add 350g of Shock-treatment per 10,000 L of water. Add 150mL of 40% Algicide per 10,000 L of water. Wait for three hours and then brush the walls and bottom of the pool. Then wait a further 12 hours and use the pool vacuum. Follow this with a filter back-wash.
  • Black algae: Same as for green, brown or yellow algae. But in this case brush the walls vigorously, black algae forms in layers. The longer you wait the more difficult it will be to deal with.

 

PREVENTATIVE TREATMENT

  • Never forget the chlorine treatment. Add 35mL of 40% Algicide per 10,000 L of water per week as a preventative treatment.

* To keep the water clear and transparent throughout the bathing season, get your water tested regularly by your specialised suppler, carry out any necessary adjustments and maintain the following parameters: total alkalinity, calcium harness and stabiliser. Ideally this should be done during the week following the commissioning of your swimming pool, then in early June and at the end of July.

Source: RBF international