Never pour pool shock into the skimmer, pre-dissolve for use in vinyl liner pools. When broadcasting shock across the surface, be mindful of the wind direction. Brush the pool after shocking, and filter the water for at least 8 hours afterward.
Let's start with the blanket rule: Don't – not even ever – pour pool shock down into the skimmer. Whether you're using shock granules or shock pods, all types of pool shock should be applied directly to the pool – and when we say “directly to the pool,” we mean like, the big open area where you swim.
Granular chlorine can be applied by broadcasting over the pool or adding it to the skimmer. Dichlor chlorine is small grained and quickly dissolves, so it doesn't need to be dissolved in water before adding to the skimmer.
Calculate the amount of shock you will need to mix. Refer to the amount indicated on the package of the shock chemical you plan to use. You can add some granular pool shock to your swimming pool directly, but most varieties need to be mixed with water before use.
Lithium Hypochlorite Shock
If your water has high calcium content, and you don't mind paying a little extra, lithium hypochlorite is the way to go. It dissolves much more quickly than calcium hypochlorite, so you can add it directly to your pool without dissolving it beforehand.
Measure the dry chemical, pre-dissolve in a bucket, and pour around the perimeter of the pool (never into the skimmer directly). There are a few types of dry, granular chlorine. These are primarily used as a shock, because of how rapidly they dissolve in water.
Never put chlorine tablets into the skimmer baskets of your pool. Some pool companies will put chlorine tablets directly into the skimmer baskets of the pool. Never allow anyone to put chlorine tablets in these skimmer baskets.
Shock-chlorination is an essential and effective method of cleaning the pool. But you need to have the pump circulating the water for this to be effective.
Light Green or Teal Pool Water:
In this case, you should double shock your swimming pool water. To double shock, you will need to add 2 pounds for every 10,000 gallons of water. For instance, if you pool is 20,000 gallons, you will add 4 pounds of shock.
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.
If using 6% liquid chlorine bleach, add 5 gallons per 10000 gallons. Add the Shock: With the filter system running, and the pH on the low side, 7.2-7.4, add the chlorine (granular or liquid) slowly to the pool, dispersing it around the pool edge, or broadcasting the pool shock over the surface.
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.
Sometimes a saltwater pool's chlorinator isn't creating enough chlorine, and the water can become cloudy or develop algae. When this happens, a bit of chlorine can save the day, said Hunker. You can add extra chlorine to the pool through calcium hypochlorite, sodium hypochlorite, or chlorine tablets.
Remember, NEVER disperse chlorine granules or tablets directly into the water. This is dangerous to swimmers' health and will absolutely result in concentrations of chlorine that will damage your pool.
For every person who uses the pool each day, you will require a further 10 grams of chlorine. Example – A 50,000 litre pool will require up to 200 grams of chlorine and if 5 people use the pool a further 50 grams of chlorine is required = total of 250 grams per day.
You may need to adjust the bottom collar to allow more or less chlorine into the water. After two to four days, tether the dispenser to another area of the pool or allow it to float around without one. Replace the chlorine tablet once it dissolves.
Many pool experts choose to use granular pool shock in saltwater systems as it works best and is easy to use. Pool shock is just plain old chlorine, actually. When selecting a pool shock or chlorine, make sure you pick chlorine that is not stabilized.
Shock your pool once a week with Salinity Surge Shock or Salinity Oxidizing Shock. Pool shock works as an added defense against bacteria and contaminants. With Oxidizing shock, you can use your pool after just 15 minutes!
The main difference between Shock and Chlorine is that the shock is a high dose of chlorine, whose only function is to shock by raising the chlorine level in the swimming pool. On the other hand, Chlorine is a general sanitiser used to maintain a crystal and clear pool for swimming.
A pool filter should be run for a minimum of 6 hours after shocking a swimming pool. This is to allow the filter to clean the water and give the shock enough time to fully mix with the pool water. Running the filter after shocking for 24 hours to 7 days is necessary if the pool has a large amount of algae.
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.
Wait until the shock process is complete, then put in the salt. It'll dissolve right away and be ready for the SWG by the time you get ready to use it.
Turn down the salt cell system. If you've reached the recommended chlorine level for your pool, the shock should last several days, so you can turn down your saltwater pool system—also called salt chlorinators or chlorine generators —for a while.