• Enamel saucepans – If the residue is the result of burning (and not corrosion), then it is best to use soda crystals or soda cleanser and bring to a soft boil. Let it soak for a long time, then wipe the bottom clean with a traditional kitchen sponge. Repeat this several times if the pan is seriously affected. Rinse thoroughly.
  • Is there lime scale in your shower drain? Cleaning vinegar is the solution for you! Pour a little cleaning vinegar cleaning vinegar on a sponge and use it to scrub the scale. The lime scale will disappear in no time at all. Also, cleaning vinegar is very useful to descale your kettle and remove any scale in the sink. Always rinse thoroughly.
  • Drain – Dissolve a cup of soda in boiling water and pour it very slowly down the drain. Allow it to take effect. After half an hour, pour a few litres of boiling water down the drain.
  • Teapot – Fill the teapot with hot water and sodium bicarbonate. The following day, the teapot will be clean and any fresh tea you make will taste even better. The spout can be cleaned with moist salt. Rinse thoroughly.
  • Sink – Scatter sodium bicarbonate into the sink. Moisten the powder using a plant sprayer. Allow it to soak, then rinse. The result will be a shiny, clean sink.
  • Sponge – a natural sponge is maintained using sodium bicarbonate. Sprinkle the powder on the sponge, then pour lukewarm water onto it. Let the sponge soak in this mixture for two hours. Rinse under running water.
  • Mixer – Has the plastic of the kitchen mixer become discoloured by carrots, tomatoes or beet juice? Sprinkle salt or sodium bicarbonate on a damp cloth and use this to wipe away the stains.
  • Bathroom tiles – Mould easily grows between your bathroom tiles. Fill a plant sprayer with a mixture of half water and half bleach, then spray it on the joints. Allow it to take effect while you ventilate the area. Rinse thoroughly with clean water. You can also use a cotton swab soaked in bleach for this chore.
  • Odours Sodium bicarbonate is not only a safe bleach, but also a great deodorant. Sprinkle some powder on the smelly spots, let it soak in for a couple of hours, then vacuum.
  • Taps – Use a cotton swab dipped in bleach to clean the difficult spots around the tap.
  • Washing machine – – Pour a few litres of water and a handful of dissolved soda crystals into the drum of the washing machine when you go on vacation. + Wash a white load once a month at the highest temperature. Add a dash of bleach or soda. All moulds and bacteria that may live in the pipes are exterminated in this way.

How much chlorine do I need?

Calculate the volume of your pool below to find out what amount of chlorine you need.

Rectangular swimming pool


Round swimming pool


Oval-shaped swimming pool



pH (= acidity)

The pH (= acidity) is the most important parameter to measure in your swimming pool or spa.

The value should be between 7.0 and 7.6; 7.2 is ideal.

  • Too high a pH value can result in the development of dangerous bacteria such as Pseudomonas, because the chlorine chlorine in your pool water is much less active. Clear water is not always a guarantee for the absence of dangerous bacteria or viruses. That is why measuring the pH is very important for the health of your children and yourself. In addition, too high a pH value in combination with too little free chlorine will lead to algae growth (green water).
  • Too low a pH value can lead to corrosion of all metal parts (stairs, ladders, heat pumps, circulating pumps, lighting etc…) and the development of the irritant chlorine odour (trichloramines), which causes eye, nose and skin irritations.

Attention: The pH value of your water (especially in case of a spa) must always be measured when your water has reached the right temperature (37°C for a spa). After all, the pH value will rise as the temperature of your water increases (the pH rises as carbon dioxide escapes). Adjusting the pH value of your water is useless if the temperature has not yet reached the desired level, since it will change as the water is heated.

Chlorine (= free active chlorine)

The presence of chlorine in your pool or spa is necessary to ensure that the water stays clear and healthy (oxidised and disinfected water).

The chlorine in your pool water that should be measured is the free chlorine (which prompts the oxidation and disinfection).

The following concentrations of free chlorine should be maintained to be 100% certain that your water is sufficiently oxidised and disinfected (clear and free of bacteria and viruses).

  • Outdoor swimming pool: 0.5 to 3.0 mg/l
  • Indoor (roofed) swimming pool: 0.5 to 1.5 mg/l
  • Spa or whirlpool: 1.0 to 3.0 mg/l


The pH should be between 7.0 and 7.6, so that the free chlorine chlorine is active. Too high a pH value (> 7.6) will make your free chlorine inactive (your water could even turn green).

Attention: The use of chlorine tablets and granules that contain cyanuric acid (mono–, di–, or triisocyanurate ions) will cause the concentration of active free chlorine to be much lower than the measurements with a photometer indicate.

The cyanuric acid level must not exceed 70 mg/l, otherwise your free chlorine will not be active enough anymore.

Liquid chlorine chlorine bleach lye is sodium hypochlorite = NaOCl

The concentration used by qualified installers is 13% = 130 g/l=ppt or 130,000 mg/l=ppm

Attention: Never mix liquid chlorine directly with an acid = pH-minus, because it will immediately release chlorine gas (a green cloud) which is extremely harmful to your lungs and may even cause death in case of high concentrations.


  • Suffering from dry skin? Dissolve a few spoonfuls of sodium bicarbonate or soda in your bathwater if your skin is dry. You will no longer be itchy when you get out of the water.
  • Nicotine can cause an ugly yellow layer on teeth and curtains, among other things. To remove this, sprinkle some sodium bicarbonate on top of your toothpaste. As you know, this has a bleaching effect. Brush your teeth twice a day in this way. White curtains are best washed with an organic soaking agent and then with a main-wash detergent (to which a bleach has been added) and a half a cup of bicarbonate. Let dry in the sun.
  • Stop ironing immediately when you smell a perspiration odour, otherwise you will make the perspiration spots permanent. Let T-shirts and shirts soak in water (preferably lime-free) mixed with cleaning vinegarfor about an hour. Then dab the spots with Loda soda or Loda soda cleanser. Finally, use a main-wash detergent.


  • Adding a spoonful of bleach to the vase, suppresses the effect of harmful bacteria on your cut flowers. Take a look here to find out more about our range of bleaches.
  • Cleaning vinegar or bleachis the ideal agent to remove green deposits on tiles.
  • Spray some undiluted vinegar on weeds and they will disappear like snow in the summer.
  • Barbecue – Immediately after cooking, place the grill into a large garbage bag and add hot soda water. Close the bag with a rubber band. Let soak overnight and rinse the following day.
  • The garden path – can be very slippery in winter. Scrub regularly with soda or bleach. Never use both at the same time!
  • Flower vase – rinse flower vases and planters after use with hot soda water. In that way, you will remove all dirty odours and any germs that could affect other flowers or plants.
  • Rain barrel – Regularly pour a dash of bleach into the rain barrel. The water will not start to stink, and it is harmless for plants.
  • Plants – clean old earthenware planters with soda water before you add new plants. In this way, any existing bacteria will not be transferred unto the new plant.
  • Bird droppings – Spots on textile should be scraped off as much as possible first. Then rub a paste of soda and water or soda cleanser. Wash as usual.