Chlorine shock how much

So at the first sign of algae growth, take some time to shock your pool and keep your pool waters crystal clear. In the old days figuratively speaking , shocking was just carried out using unstabilised chlorine, but nowadays you can find different varieties of chemicals labeled as pool shock and let's see what each one is.

Cal hypo is one of the oldest forms of chlorine used for pools dating back as far as This comes in granular form and this has to be dissolved thoroughly in water before being broadcasted around the pool. Take note that using cal hypo also adds 0. If you're using this to shock your pool, don't forget to check your calcium levels down the line.

This dissolves much faster than cal-hypo and works faster but at a cost. The rising cost of lithium has made this type of pool shock rather hard to find and is much more expensive. The upside to this is that lithium is toxic to most types of aquatic life, making it especially effective especially when dealing with green pool water. This is basically your stabilised chlorine since it has cyanuric acid in it. Be careful when using stabilised chlorine when shocking your pool as too much cyanuric acid or stabiliser can pull down the efficacy of your chlorine's sanitising power.

We don't really have a set calculation because everything will depend on the manufacturer of the type of shock that you'll be using, refer to the packaging for more precise instructions on how much to use. With that baseline, we can get a rough estimate of how much we'll need to shock the pool. Note that sometimes we may need to double or triple that amount depending on the situation so it's important to take note of the terms "double shock" or "triple shock" when reading guides here on Mr Pool Man.

There are 3 different stages of pool algae growth in which different amounts of pool shocking are needed:. These are not different types of algae, but rather different levels of algae growth.

The more algae in your pool water, the darker the green colour will be. If you have a light green pool, you need to shock your pool adding more acid and chlorine than usual in order to kill the algae. Algae feeds off high pH. Chlorine isn't as effective when your pH is high. Start with around 1L to 2L. Be careful when adding it to the pool, ensuring it doesn't splash up on you as it is highly toxic and dangerous.

If your pool is vinyl lined, only add 1L every 24 hours, as it's more sensitive to harsh chemicals. You also need to shock your pool with chlorine. Your salt levels should be sitting at around ppm parts per million , with each 20kg bag of salt equating to ppm.

Is That Algae I See? Nighty-night The ideal time to shock your pool is in the evening after all swimming is complete. Other times that may require an extra dose of shocking: After a party - the extra bather load of active swimmers will put additional strain on chlorine in the pool. When your pH is out of balance, your chlorine does not work as well. Also, as the rain is falling through the air, it picks up contaminants such as pollen and pollutants and dumps them in your pool.

Heavy rain may cause ground runoff to empty into your pool. Shocking 10 Commandments Thou shalt shock if thy combined chlorine level is at. Thou shalt protect the sanctity of thine face and eyes by only adding shock up-wind so that the wind cannot return unto thine own face or eyes, the shock which can cause damage. Thou shalt never add water to shock…only shock to water.

Thou shalt never add shock to a skimmer it is BAD for your equipment only wilt thou broadcast it over the surface of the water. Thou shalt quickly disperse and distribute thine shock by brushing and running thine pump for at least 20 minutes after the broadcasting thereof. This article covers shocking your pool with two of the most popular shock products on the market today — sodium hypochlorite liquid chlorine pool shock and calcium hypochlorite granular shock.

There can be a good bit of math involved in shocking your pool. If you want to get technical, the amount of chlorine already in your pool, the concentration of your chosen shock product and the volume of your pool all come into play. For many residential pools, or if you just want a ballpark estimation on how much pool shock you will need, simply follow the directions on the packaging.

Often, it will look something like this. In many scenarios, this should get you rolling. However, it is not the most precise option available. Here is an example. The answer to this story problem is 4. Although this calculation takes a while, it gives you a much more accurate chemical dosing measurement. This can possibly save you money by reducing waste. Your 30,gallon pool has an accidental liquid fecal release.

You will be using If you have any questions regarding your pool or aquatic center needs, do not hesitate to get in touch with us. We are always available via phone or email and look forward to assisting you. If you are looking to purchase products directly online, visit our online pool and spa supply store. Preparing to Shock Your Pool Know how many gallons of water your pool holds. Shock dosing should be part of any pool owner's usual cleaning routine. It is highly recommended to shock dose your pool when:.

If you do not regularly use your pool then shock dosing at least once every two weeks will maintain a healthy water environment. Pool owners should ensure they have a maintenance schedule, this will help to regulate the cleanliness and correct chemical levels of their pool.

Regularly testing your pool may also reduce the amount of shock dosing necessary to maintain a clean, healthy pool. Here are a collection of pool symptoms that will indicate your pool will require immediate shock dosing. There is only one factor that will cause a green pool, and it is algae. You will be able to determine how severe this issue is by the shade of green.

If the pool water is a light shade of green this will indicate that the algae is a fairly new addition to your pool. If the shade of green is darker than you will have a much bigger problem to tackle. Algae will mainly develop due to the sanitiser level being too low.

A water testing schedule will enable you to maintain balanced water in regards to your pool water chemistry. There are various reasons as to why algae will have developed in your pool. This can be due to a lack of maintenance in regards to the chlorine or bromine levels, inefficient chlorine or an ineffective circulation or filtration system. Outdoor pools require a reading of ppm.

If a swimming pools chlorine or bromine levels are not maintained and tested regularly this can entail insufficient sanitisation, leading to bacteria and algae growth. A solution to this particular issue is to shock dose the pool. We recommend considering the use of chlorine tablets or a chemical dispenser. Chemical dispensers will help to ensure a constant supply of chlorine. Chlorine can be deemed ineffective due to either over-stabilisation, also known as chlorine lock, or a pH level that is too high.

When a pH level reads 7. To redeem this you will need to remove the stabiliser chemical from the pool, which is, in this case, is the chlorine.