Once you've obtained a good reading, you can usually maintain your chlorine levels by adding chlorine tablets once a week. These dissolve more slowly and will keep your chlorine levels stable.
Usually works out to about 6X/week. I like to let it get to the low end before I test pH at least once a week.
For a pool that is 10,000 gallons, if using Clorox that contains 6% chlorine, you will need about 21 ounces to raise your available chlorine by 1 ppm. Remember that one gallon is equal to 128 ounces, so if you were to add 1 ppm daily (if needed), a gallon of Clorox will last you about 6 days.
Risks of Over-Chlorination. While slightly higher-than-normal levels of chlorine in your pool are harmless, exposure to an over-chlorinated pool can have adverse effects on your health and well-being. Excess chlorine can alter the pH level of the water in the pool, making it more acidic.
Short answer: yes. Longer answer: it depends on the formulation. The label on every bleach bottle should tell you the ratio of sodium hypochlorite (and available chlorine) in the bottle to everything else. A higher percentage is generally better, as you'll need to use less bleach to treat your pool.
Green algae, unlike its black counterpart, is a true algae; it isn't resistant to chlorine, so you can control it by shocking the pool. If you don't want to spend a lot of money on expensive pool chemicals, you can shock with household bleach.
High concentrations of chlorine (above 1.5 ppm) will attack the liner and bleach it, thus damaging it. Any level below this range will weaken its ability to kill off bacteria.
In theory, if you have a cloudy swimming pool, you can add chlorine to “shock it” and clear things up. Chlorine will get the job done. But, the amounts may vary and you may have to really pound the pool with chlorine to get the water totally clear.
Swimming pool shock contains 12.5% sodium hypochlorite (bleach) vs. 6-8.5% for Clorox (bleach). Some Clorox products go as high as 8.5%. At a 12.5% concentrate, liquid pool shock is approximately 2x's stronger than Clorox bleach.
Answer: It is true that pool chlorine is stronger than bleach. For bleach and water to be the same strength as pool chlorine and water, you would have to adjust the ratio, increasing the bleach and reducing the water. But no matter which chlorine you use, make sure to test a small area before doing the job.
Calculate the amount of bleach you need based on the fact that 1 gallon will raise the free chlorine level of 30,000 gallons of water by 2 ppm. If you need to mildly shock a 30,000-gallon pool by raising the free chlorine concentration to 5 ppm, you need 2.5 gallons of bleach. To raise it to 10 ppm, you need 5 gallons.
How Often Should I Shock My Pool? Shocking your pool regularly will help to keep the water clean and free of contaminants. You should aim to shock your pool about once a week, with the additional shock after heavy use. Some tell-tale signs that your pool needs to be shocked are cloudy, foamy, green, or odourous water.
Excessive levels of pool chemicals can cause your water to become cloudy. High pH, high alkalinity, high chlorine or other sanitisers, and high calcium hardness are all common culprits.
The main difference between bleach and chlorine is their strength. Chlorine is much stronger than bleach. To get your pools chlorine level to the point it needs to be to keep the pool looking clean and bright; you will need to use more bleach than you will chlorine.
It not only brought the threat of high winds, fallen power lines and deadly waters, but also the potential for hazardous air conditions caused by chemical breaches in the nearby chemical plant. The loss of this plant will result in a nationwide chlorine shortage that will be felt through the 2021 season.
But is it safe to swim in a pool with algae? Whether mild or severe, it isn't recommended. Significant amounts of swimming pool algae welcome a breeding ground of harmful bacteria that feed on algae. These bacteria pose health risks to swimmers, most commonly resulting in a skin rash.
Should the green be due to pollen, there may be little to do in the way of minimizing the discoloration short of erecting a building around the pool. Fortunately, assuming there are no allergies to the pollen, it is safe to swim in a pool with that as the cause for green water.
When added to pool water, sodium hypochlorite turns into HOCL, and this is the chemical that kills any bacteria and any other harmful organisms it comes into contact with. Both chlorine and bleach will release HOCL into the pool and it will do the job of sanitizing your pool.
Run the filter for 24 hours and backwash the pool filter around 4 times during the same day to get faster results. DE filters will clear green pools 50% faster than a sand filter.
Pools can immediately turn green after shocking when they have metals like copper in the water. These metals oxidise when exposed to high levels of chlorine which makes the pool water turn green. Adding a metal control product such as Zodiac Metal Remover will help to restore the pool water.
It's best to run your pool pump during the day
Not only does sunlight give fuel for algae to grow, it also destroys your pool chlorine and this is why you should always run your pool during the day!