Swimming pools need chlorine because chlorine is the only effective way to keep pool water clean. Even a saltwater pools need chlorine (they just generates the chlorine themselves). While there are other methods of cleaning pool water, such as UV or ozone treatment, they are not replacements for chlorine.
Even from a health standpoint, it is simply not safe to operate a pool without some added “chemicals” to combat bacteria and contaminants in the water. A pool without chemicals is the perfect breeding ground for bacteria, viruses, and parasites.
Both types of pools actually use chlorine. Salt-water pools are chlorinated pools in which the chlorine is generated on site from sodium chloride. Other types of chlorinated pools use chlorine to disinfect the water with chlorine tablets or sticks. Why do pools sometimes have a chlorine or chemical smell?
Chlorine is essential for pool water because it kills harmful algae, bacteria and microorganisms. Unfortunately, chlorine breaks down when exposed to the sun and chemicals from sunscreen, sweat and more. A pool should have a chlorine level between two and four parts per million (ppm).
It is recommended to wait at least 20 minutes to an hour after adding water balancing chemicals. You should wait 2-4 hours (or one full cycle through the filter) to swim from the moment you use calcium chloride in your pool. It is safe to swim once your chlorine levels are around 5 ppm or after 24 hours.
A common question asked is, “Can above ground pools stay up year round?” And although the easy answer is that “Yes, they can,” whether you want to leave them up year-round really depends on the type of pool you have. Dismantling some above ground pools for the winter may be more hassle than it's worth.
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.
SKIMMER NOTES: No. Chlorine and shock are not the same thing.
Shock has a more intense chemical strength than the traditional chlorine sanitizers, and it also differs in how you should apply it to your swimming pool. Short answer: No. Chlorine sanitizers and shock are similar but different in strength.
If you test your pool water and can't get a chlorine reading, it may be due to your pool's high demand for chlorine. A high chlorine demand (sometimes referred as chlorine lock), simply means that although your water may appear clear and balanced, the chlorine in your pool is ineffective.
Pros of Saltwater Pools
They're gentler on the skin, with less irritation to the eyes, hair and swimsuits. The water has a softer, silkier feel to it compared to chlorine water. They have lower maintenance costs than chlorine pools. There's no need to store harmful chemicals.
This is because when you mix chlorine and algaecide together, it renders both of them useless. Hence, you should first shock the pool and wait for the chlorine levels to fall below 5 PPM.
What can happen if you go into a pool too soon after it's been shocked? There are a few potential issues. "Chlorine will react with water to produce an acid," Alan says. "The effects will be different depending on whether chlorine is inhaled or whether there is skin or eye contact."
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.
After your cyanuric acid level is set, add the bleach. Then proceed with daily testing until you understand how much chlorine your pool uses. At this point, chlorine maintenance can be as simple as adding a little bleach to your pool every day to keep it within the target levels.
The shortage is due to increased demand for pool supplies during the pandemic and a chemical fire at a BioLab facility in Louisiana after Hurricane Laura that knocked out one of the country's three main chlorine manufacturers.
Liquid chlorine and granular shock have the same active chemical that sanitizes your pool, what changes is the strength and the way you use it. Liquid chlorine is less costly, unstabilized and comes in liquid form. Granular shock is stabilized and comes in a solid form that dissolves in your pool.
September and October are a good time to close the pool because the weather is ideal. It's still warm to be outside, enjoying the sun, even if you hate to say goodbye to summer. But once those temperatures start dropping significantly, you're going to kick yourself for not closing the pool sooner.
CaliMar pools are the strongest, longest lasting models of pools on the market and all carry an unprecedented 8 Year - 100% warranty along with a Lifetime warranty on the above ground pool liners.
Even with proper and regular pool maintenance, it's often necessary to drain your pool — completely or partially — every 3-5 years. Draining your pool often isn't necessary, especially if you're following a proper and regular maintenance program.
Chlorine, either solid or liquid, is a pesticide used in pools to destroy germs, including those from feces, urine, saliva and other substances. But excessive exposure to chlorine can cause sickness and injuries, including rashes, coughing, nose or throat pain, eye irritation and bouts of asthma, health experts warn.
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.
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.