Last Updated on June 6, 2022 by Maria James
Anyone who has the necessary basic knowledge and has already carried out shock chlorination several times is quickly experienced the right approach.
Pool shock chlorination is important to neutralize algae, bacteria, chloramines, insects (such as . B mosquito larvae in the pool), and other foreign bodies in the pool. pressurised pond filter reviews only in this way can the typical pool smell be prevented and the water remains hygienically pure.
What is pool chocker and how does the remedy work?
Many people confuse the well-known “pool smell” with chlorine smell. In fact, the free chlorine pool hardly smells. The penetrating swimming pool smell is due to substances called chloramine.
The fact that the pool smells at all is not the result of the use of chlorine, but a sign of insufficiently maintained pool water.
Chloramines are produced as a by-product of the reaction of chlorine ions with foreign organisms. The disinfectant chlorine binds to other particles to neutralize them and thus becomes bound to chlorine.
Chloramines are not only the cause of the chemical smell but can also cause skin, respiratory, and eye irritation. Pool chocker is made of (free) chlorine and other chemicals.
These are added to the water to destroy the molecular structure of chloramines, bacteria, pathogens, and other foreign bodies.
The structure of chloramines can only be attacked if at least ten times the amount of free chlorine is present in the pool water.
The free chlorine is the proportion of the active substance that really has a disinfecting effect and keeps the pool clean. If the amount of free chlorine is not sufficient during shock chlorination, the chloramine does not dissolve either.
When does shock chlorination have to be performed?
Perform shock chlorination at least every two weeks. In some cases, the next shock chlorination should be brought forward. This serves the purpose of keeping the pool clean, odorless, and harmless to health. Special circumstances include:
large change in the water level
Wildlife has bathed in the pool
heavy pool use (e.B. because of a pool party)
high temperatures in summer
heavy rainfall, in which visible deposits have formed in the pool
In the summer months, the load on the pool is higher (also because more is bathed in it). From June to August, the swimming pool should therefore be treated weekly with pool chockers.
A pool of shock chlorinations (step-by-step instructions)
With the theory in mind, it now goes into practice. The shock chlorine of a pool is not rocket science. With this step-by-step guide and our tips, it’s even shockingly easy.
Most pool chockers contain unstabilized chlorine, which is quickly banished from the sun. Shock chlorination may therefore only be carried out at night.
The pool water should also not be heated or cooled. The ideal water temperature for shock chlorination is 15 to 18 °C and the optimal pH value is 7.2.
Step #1: Choose the right material
Before shock chlorination can begin, you need to gather some equipment and a few pool chemicals. When dealing with pool chockers, it is important to exercise caution. For this reason, put on protective equipment and wear older clothes where stains would not be a problem.
Checklist: What you need for shock chlorination
A test kit or test strip
old trousers and an old, long-sleeved shirt
sturdy, closed shoes
Test pool water
Subsequently, the pool water must be examined. The measured values are the basis for the dosage of the pool chocker. For pool water testing, use a test kit with tablets or a test strip.
Most test strips and kits cover the most important values. For shock chlorination of the swimming pool, the chlorine concentration with the total chlorine (TC) and free chlorine (FC) as well as the pH value is of particular interest.
Correct pH (if necessary)
In regular operation, the pH value should be between 7.2 and 7.6. Too high a pH value (basic pool water) would be particularly problematic in shock chlorine, as the effect of chlorine is inhibited in alkaline pool water. If the pH in the pool is too low or the pH in the pool is too high, it must be corrected.
If the pH is too high, you should use pH-Minus before impact chlorination. With this pool chemical, the pH value can be lowered. Follow the manufacturer’s instructions for use and dosage.
Step #4: Calculate shock chlorination
To calculate the dosage of the pool chocker, you do not have to be a math genius. Calculate the amount of pool chocker simply step by step:
Find the concentration of the bound chlorine (CC). Simply subtract the content of the free chlorine (FC) from the total chlorine (TC).
Multiply the value CC by ten.
From this product, subtract the concentration of free chlorine (FC).
Check on the packaging of the pool chocker or on the manufacturer’s website how many grams of pool chockers are needed to cause a change in the free chlorine from 1 ppm to 10,000 liters.
Divide the volume of your swimming pool by 10,000.
Multiply the pool volume (step 5) by the amount of pool chocker for a change by 1 ppm (step 4) and the missing free chlorine (step 3).
You can now divide the result of the last step by 1,000 to get an indication in kilograms. This amount of pool chockers must now be added to the swimming pool.
Step #5: Put pool chockers in the water
When the correct dosage has been calculated, it’s time to put the pool chocker in the water. Be careful with handling the chemical and always put on protective gloves.
On the packaging of the pool chocker or on the website of the manufacturer, the use of the respective product is explained.
Some manufacturers recommend dissolving the pool chocker first. To do this, fill a 20-liter bucket to about 3/4 with warm tap water.
Then add the pool chocker to the water in increments of 500 grams each and stir the solution slowly with a wooden stick so that the pool chemical can dissolve.
The best way to pour the loosened pool chocker into the water is to slowly walk around the pool while watering. In this way, the remedy is well distributed in the pool.
The same applies to pool chockers in tablet form. Distribute the tablets evenly in the swimming pool.
Step #6: Run the filter system
Turn on the filter system so that the chlorine is completely distributed in the pool and in the filter system. Shock chlorination is carried out in the evening. Just let the pool pump run overnight.
After shock chlorination, it may happen that the next morning the pool water is milky or cloudy.
Either wait a few hours until the turbidity has subsided or you use water clarifiers so that the swimming pool immediately becomes crystal clear again.
At least eight hours must pass between the treatment with pool chocker and the first bath. By then, the excess free chlorine is broken down again. The short forced break must be to avoid skin and eye irritation.
What is meant by pool shock chlorination?
Shock chlorination is the short-term overdose of chlorine. best garden hose the process is used in swimming pools or comparable swimming pools to combat algae infestation or other contamination or to combat freshly filled water from contamination. The chlorine content is increased to 10 mg/l. Learn more.
How often should pool shock chlorination be performed?
In general, it is recommended to carry out a pool shock chlorination every two weeks. In summer, the load on the pool is higher, which is why a weekly pool shock chlorination is more effective. Learn more.
How do I perform a pool shock chlorination correctly?
A pool shock chlorination sounds more complicated than it actually is. Put on your protective clothing, calculate the required amount of chlorine, dissolve the pool chocker, put pool chocker in the water and wait. Step-by-step instructions.
When can I go swimming again after a pool shock chlorination?
After a pool shock chlorination, it takes about 8 hours until you can go back into the pool. However, this is only a guideline. You should only bathe in the pool again if the chlorine content is below 3ppm (proportions per million). Learn more.
How much chlorine does my pool need?
In a private swimming pool, the chlorine content is 0.5 to 1.0 mg per liter. At higher temperatures, the chlorine content should be increased to 0.7 to 1.2 mg/l.
The shock chlorination of the pool is part of the regular tasks of a pool owner. Even if routine sets in quickly, you must always exercise caution. When handling pool chockers, the wearing of protective clothing is mandatory.
Store pool chockers in a cool, dry and dark place. Never mix different types of pool chockers. Also, do not breathe in the air that flows out of the storage container when opened.
For chlorine larger swimming pools, you should also buy a respirator. With the small amounts of chlorine required for a private swimming pool, it does not necessarily require a mask.
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After this reading, you are almost a real expert when it comes to shock chlorine. With our tips and this step-by-step guide, the pool of shock chlorination becomes child’s play, but your own safety must always be taken into account.