If the water is clean and clear, then add about 3 oz of liquid chlorine per 1000 gallons of water – while the pool filter is running. This should give you a chlorine level of about 3 ppm.
So for a 21-thousand gallon pool, you'd want to round up to two pounds of shock. Always round up to make sure your pool gets enough chlorine.
Shock Dosage: 2 gallons of shock per 10,000 gallons of water.
The basic balance of chlorine to water is between 1 and 3 ppm, or 0.00013 ounces of chlorine per gallon of water.
In the heat of summer your pool can require 4 grams of chlorine per cubic meter of water (1000 litres) of water every day.
Use 1-3 tablets at a time, depending on your pool size. You'll need enough to establish and maintain proper chlorine levels. Small Intex pools under 12′ in diameter should use 2-4 of the 1″ tablets in a chlorine floater. In addition to everyday chlorination of your Intex pool, you may have heard of shocking the pool.
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.
To superchlorinate, add AT LEAST 2.5 ounces (5 tablespoons, 75 grams) of chlorine for every 100 gallons (400 litres) of spa water or part thereof. Adding more is fine and never a bad idea.
Superchlorination, also known as shocking or chlorine shocking, is the process of adding several times more chlorine to the pool than is normally needed so that the chlorine can "burn" through resistant compounds, chemicals, oils and strong types of algae.
How much shock do I need to shock my pool? A simple ratio and a standard rule of thumb to follow when you shock your pool is to dissolve one pound of either calcium hypochlorite or sodium dichlor for every 10,000 gallons of pool water.
You'll need to first know the amount of water in your pool, give or take a few hundred gallons. If you aren't sure, take some measurements and consult an online pool volume calculator. Generally speaking, the dosage amount of pool shock is 1 lb. per 10,000 gallons, but consult the shock package label.
When you're shocking a pool, the goal is to raise the free chlorine level of the pool water to roughly 10 times the combined chlorine level.
Let the pump run for at least eight hours after shocking, and wait for the chlorine level to fall below 5 ppm before anyone goes in the water.
Chlorine pools should superchlorinate weekly to ensure proper sanitation of the water and prevent bacteria and algae growth. Superchlorination is recommended after heavy bather loads and/or heavy rain fall. Nature II Chlorine Pools can superchlorinate every 2 weeks or as needed.
This is why many pool experts recommend that you turn down, or shut off, your saltwater chlorine generator (SWG) while you're shocking your pool. Otherwise, you're running the risk of damaging the salt cell. And that could lead to it not generating enough chlorine after the shocking process finishes.
It is safe to swim once your chlorine levels are around 5 ppm or after 24 hours. It is always best to test first! Muriatic acid can create a hot spot of acid in the water that could potentially burn or irritate your skin. It is best to wait 30 minutes after adding it to your pool.
Avoid swimming in the pool after Super Chlorination. High levels of chlorine are toxic and the water should be tested prior to re-entering the pool following a shock treatment. No one should enter the pool until the chlorine level has returned to or lower then 3ppm (Parts Per Million).
Unlike liquid chlorine solutions that are nothing more than chlorine mixed into water, chlorine tablets are typically composed of chlorine and a stabilizing component which is usually cyanuric acid or CYA.
Liquid chlorine can be great for pools BECAUSE it has no stabilizer and it doesn't leave any residues or other chemicals behind. Without added stabilizer (CYA), liquid chlorine simply raises chlorine levels without increased CYA levels.
Powdered chlorine is the most typical form of chlorine used in a domestic pool environment. It is typically only slightly more expensive than liquid chlorine but it is much easier to use and has a lower pH, therefore has less impact on your pool's balance when used.
It comes with a 330 Krystal Clear™ cartridge filter pump. Water capacity is 1,185 gallons (90%) and it is ready for water in 30 minutes.
In a clean, freshly filled 500 gallon wading pool, add a quarter cup of unscented household liquid chlorine bleach to the water. Then, at the end of each day, test the water and add an additional 1/8 to 1/4 cup, depending on the reading.
Liquid chlorine is a good choice to use in a vinyl liner pool. The chlorine itself isn't as concentrated as others and it distributes very quickly throughout the water reducing the risk of having concentrated areas of chlorine. You should pour liquid chlorine evenly into specific areas of your pool.
Adjust the dial of the Aqua Rite™ chlorinator to adjust more or less chlorine. If there has been a large number of swimmers in the pool or the pool water is cloudy, you can put the Aqua Rite™ chlorinator into "Super Chlorinate" mode where it will automaticially generate the maximum amount of chlorine for 24 hours.