There are alternatives to chlorine including bromine, ionizers, and ozonators, though with each you'll still need to use some chlorine. A fourth alternative is PHMB, which doesn't require the use of any chlorine. All four have drawbacks, including cost.
Bromine. This is probably the most common pool chlorine alternative. Bromine eradicates contaminants by ionizing them, or forcing them apart at the molecular level. Much of it remains active even after this process, so it lasts a little longer than chlorine does.
You can use oxygen to keep your pool clean without using chemicals and filters. The method is safe and very efficient and effective in removing bacteria and viruses from the water.
I think the answer to your question is about 3-6 days. The problem is that the chlorine that you need to keep the bacteria in check is used up more quickly as the temperature rises, the activity increases, and as sweat and other body stuff is put into the pool.
The Bottom Line about Pools and Chlorine
As mentioned above, you could probably swim in a pool without chlorine without any major health issues. However, long-term use of a pool lacking chlorinated H2O could make you sick or, at the very least, contribute to rashes and other types of skin irritation.
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.
As a rule, you don't add more than 2.5 pounds of baking soda in a day. Instead, start off adding the required amount (e.g., 1.25 for 10,000 gallons of water) of baking soda that can raise the alkalinity of your pool to 10ppm. You can sprinkle your baking soda over the surface of the pool, or you pour into a skimmer.
Vinegar contains acetic acid which makes it a great disinfectant. It is also acidic in nature hence removes dirt, grease and mineral deposits. If used in the right amount, its acidic nature also plays a role in lowering the pH of pool water.
A rule of thumb is 1.5 lbs. of baking soda per 10,000 gallons of water will raise alkalinity by about 10 ppm. If your pool's pH tested below 7.2, add 3-4 pounds of baking soda. If you're new to adding pool chemicals, start by adding only one-half or three-fourths of the recommended amount.
The benefits of swimming pool salt
Using swimming pool salt instead of chlorine delivers greater swimming comfort: Swimming pool salt does not give off an unpleasant odour as chlorine does. It is much less harsh on hair and skin. It does not cause your eyes to sting.
Household bleach, Clorox and liquid chlorine can all be used to sanitize a pool. They are all types of chlorine. Household bleaches such as Clorox usually contain about 5-6% available chlorine, about half that of pool liquid chlorine. Household bleaches often have unwanted fragrances and colors.
Bleach is safe and the only chemical you should be using in your pool unless cleaning pool tile with baking soda. So yes, you can use bleach to keep your pool water chemistry balanced.
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.
Common unscented household bleach (sodium hypochlorite) works well to shock a pool.
Add chlorine if needed to keep your reading between 1-1.5ppm. Once you've obtained a good reading, you can usually maintain your chlorine levels by adding chlorine tablets once a week.
Well-known member. No! Splashless contains a type of soap as a thickener, and it will make bubbles in your pool, as well as HE washing machines. Don't use splashless bleach.
Every pool will also need other chemicals to raise calcium, cyanuric or alkalinity levels, usually once per year, and clarifiers, enzymes, algaecides can be an important part of the overall routine or are especially handy when you're in a pinch!
While the quart or so of water that was setting in the hose may have some chemical contaminants in it, by the time that is diluted into thousands of gallons of water, it's of no concern. That is of course assuming that your swimming pool is not your primary source of all drinking water.
It takes a lot of chemicals to make pool water safe for swimming. Untreated water can accumulate harmful Escherichia coli and Salmonella bacteria and protozoans such as Cryptosporidium parvum and Giardia lamblia.
Maintenance is critical when it comes to the quality of your pool water. Well maintained pool water can last up to 5, maybe even seven years before you need to replace it. This means weekly cleaning, functional filters, and checking ph levels every day. Usage is a huge determining factor.