Pool chemicals and what they do

pool chemicals and what they do

Pool Chemical Safety

Pool Shock & Super Chlorinating Chemicals are some of the most important pool chemicals and are the base of your pool maintenance routine. When added to water, these sanitizing chemicals oxidize organic contaminants such as bacteria, deactivating and destroying them. The amount of chemicals for pool start up that you need to use is going to depend on what state your water is in. Each chemical that you add to your pool needs to be doing something to the water to help it reach those targets. However, you need to be careful of chemical interactions and not overload your pool .

By: Chemicale Harris. A pool's chemocals system does the heavy lifting in keeping hwat water clean, but it takes chemistry to do the fine-tuning.

It's important to carefully manipulate the chemical balance in pools for several reasons:. To take care of pathogens in the water, you have to introduce whzt disinfecting agent whaat will get rid of them. The most popular pool disinfectant is the element chlorinein the form of a chemical compound such as calcium hypochlorite a solid or sodium hypochlorite a liquid.

When the compound is added to the water, the chlorine reacts with the water to form various chemicals, most notably hypochlorous acid. Hypochlorous acid kills bacteria and other pathogens by attacking the lipids in the cell walls and destroying the enzymes and structures inside the cell through an oxidation reaction.

Alternative sanitizers, such as bromidedo basically the same thing with slightly different results. Chlorine is typically prepared in liquid, powder or tablet form though some professionals use gaseous chlorineand it can be added to the water anywhere in the cycle. Pool experts generally recommend adding it just after the filtering process, using a chemical feeder.

If it's added chsmicals into the pool, using tablets in the skimmer boxes, for example, the chlorine tends to be too concentrated in those areas. One problem with hypochlorous acid is chemicls it's not particularly stable. It can degrade when exposed to ultraviolet light from amd sunand it may combine with other chemicals to form new compounds.

Pool chlorinators often include a stabilizing agentsuch as cyanuric acidthat reacts with the chlorine to form a more stable compound that does not degrade as easily when exposed to ultraviolet light.

Even with a stabilizing agent, hypochlorous acid may combine poo, other chemicals, forming compounds that are not very gk chesterton whats wrong with the world sanitizers.

For example, hypochlorous acid may combine with ammonia, found in urine, among other things, to produce various chloramines. Not only are chloramines poor sanitizers, but they can actually irritate the skin and eyes and have an unpleasant chemiczls.

The distinctive smell and eye irritation associated with swimming pools are actually due to chloramines, not ordinary hypochlorous acid -- a strong smell usually means there is too little free chlorine hypochlorous acidrather than too much. To get rid of chloramines, pool custodians have to shock treat the pool -- add an unusually strong dose of chemicals to clear out organic matter and unhelpful chemical compounds.

Chloramine formation pool related to the second major element in pool chemistry, maintaining the right pH in the pool. These days, most swimming pools are built with underground lights, partially for aesthetic appeal but mainly to let night swimmers see what they're doing.

In one common underwater lighting design, an incandescent light bulb is sealed in a water-tight fixture, which sits inside a niche embedded in the pool wall. The insulated electrical wire runs into the fixture through a special seal, keeping water away from the conductive elements.

The wire runs back to the house or wherever the power source is through a long tube, which is filled with water most of the way. There is enough extra wire piol the tube that you can pull the entire fixture out of the niche and up above the water level when you want whwt change the bulb. Some people use fiber-optics to light their pools, instead of embedded incandescent fixtures. In this system, the actual light source doesn't have to amd underwater, so you can skip the whole bulb-changing, water-proof electrical-component issue entirely.

Prev NEXT. What is texas football team Improvement. Outdoor Living. Dangerous pathogenssuch as bacteriathrive in water. A pool filled with untreated water would be a perfect place for disease-carrying microorganisms to move from one person to how to do the alphabet. Water with the wrong chemical balance can what causes cerises skin condition the various parts of the pool.

Improperly balanced water can irritate the skin and eyes. Improperly balanced water can get very cloudy. Light It Up. Read More. Cite This! Print Citation.

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What Pool Chemicals Do I Need, and How Much?

Mar 14,  · The amount of each chemical you need will vary based on the size of your pool and the results of your water tests. Most pools will need startup chemicals to adjust pH and hardness, sanitize the water, and prevent algae growth. Oxidizers are the secondary sanitizer, used every few weeks to kill algae and bacteria. Chlorine or Non-Chlorine shocks are in a powdered form, just open the bag and pour it into the pool. Calcium Hypochlorite: Cal Hypo pool shock is used to quickly sanitize pool water, boost chlorine levels and kill . Chlorine A true workhorse of pool maintenance, this pool cleaner chemical breaks down bacteria and sanitizes your pool water. Stabilized chlorine products are protected from sunlight degradation and are an ideal means to keep your pool clear and clean.

Tobias, you are very welcome. Glad we could be of help. Thanks for your comment and please let us know if you have any questions we can answer.

I had no idea that there were so many ways to adjust the water in your pool. Adjusting the acidity was something we had to do to our pool when I was a kid, but being able to adjust hardness is new to me. Thanks for sharing! Pool Accessories Shop All. Pool Parts Shop All. Pool Covers Shop All. More - Pool Supplies Shop All. More - Spa Supplies Shop All. Return an Item. When you fill up your new pool for the first time -- or when you open your pool after winter -- there are some specific steps to take to get the water ready for use.

Use this list of the pool chemicals needed for startup to make sure you have everything you need when you get started. Startup Chemicals to Open Your Pool Your first step when opening your pool is to test your water, because the results of your water tests will determine what pool startup chemicals you need to use.

It's best to test your pool's water in several spots a couple of feet below the surface of the water. This way, you can average out your results to take into account any variations in your readings.

The amount of each chemical you need will vary based on the size of your pool and the results of your water tests. Most pools will need startup chemicals to adjust pH and hardness, sanitize the water, and prevent algae growth. Optional Anti-scaling Product If you're filling your pool with fresh water, this is a good time to add an anti-stain or anti-scaling product. These protect your pool's surface from stains and limescale, and will help keep the pool looking good, as well as reduce maintenance requirements.

Adjust the pH The first step when treating your pool's water is to adjust the pH. This is important because pool chemicals are formulated to work at specific pH levels. If the pH isn't where it needs to be, any other chemicals you add won't give the right results. Adjust the pH to between 7. If the pH is higher than 7.

If the pH is lower than 7. It's also important to retest the pH after adding each additional chemical. Adjust Total Alkalinity Alkalinity measures the concentration of free alkaline substances in the water, and generally should be between 80 and ppm. When alkalinity is outside this range, it's difficult to control the pH of the water.

To raise alkalinity add sodium bicarbonate to the water; to reduce it, add muriatic acid or granular acid. Sanitize the Water Once the pH is right, the next step is to "shock" the pool, which means adding a large amount of chlorine to act as a sanitizer. Chlorine is added in the form of calcium hypochlorite, which is dissolved in water and then poured into the water.

The aim here is to achieve a chlorine level of 3. An optional step is to add cyanuric acid at a level of around 40 ppm to stabilize the chlorine. Once chlorine has been added, leave the pool overnight. Retest the pH and hardness the next day, adjusting if necessary.

Adjust Hardness Water hardness refers to the calcium content of the water. When calcium is present in high levels, it can cause scaling of the pool's surface over time.

Adding an anti-scaling product is helpful, but because water can also be too soft, it's important to test for hardness and adjust it when necessary. For soft water, use calcium chloride to increase hardness. Pool chemicals that reduce hardness include sodium bisulphate and muriatic acid. Add Algaecide The last step is to add an algaecide. Don't wait until you actually have an algae problem to carry out this step; in this case, prevention is definitely better than the cure. Choose a low-foaming algaecide, as these are less likely to influence your pool's chlorine requirements.

Maintaining the Water Each of these pool setup chemicals must be used on a regular basis to keep the water and the pool in good condition. With regular testing and treating of the water, it'll be in great shape all season long.

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