Wondering how much shock to add to your pool? The exact amount of shock you need depends on the size of your pool, the type of shock your using, and whether or not you’ve got an algae problem.
In general, you’ll want to add 1 pound of chlorine shock for every 10,000 gallons of water in your pool. But if you’re experiencing issues like green water, you’ll need to add more. Here's a complete guide on calculating how much shock to add to your pool.
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⏰ Timestamps:
00:00 - Introduction to Pool Shock
00:38 - What Does Shock Do to Your Pool Water?
01:24 - How Much Shock Should You Add to Your Pool?
02:30 - How Much Shock Should You Add to Kill Algae?
03:33 - Can You Add Too Much Shock?
03:56 - Can You Use Bleach or Liquid Chlorine to Shock?
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How much shock to add to your pool in general. You'll want to add add one pound of chlorine shock for every 10 000. Gallons of water in your but if you're experiencing issues like green water you'll need to add more so here's a quick guide on figuring out how much shock to add to your pool. Let's dive in real quick.

If you want more help taking care of your pool be sure to grab our free pool care cheat sheet at swimuniversitycom. Cheat sheet it's totally free and will help keep your pool clean and clear all season long first what happens when you add shock to your water shocking. A pool is the process of adding a highly concentrated dose of chlorine to quickly raise the levels of free chlorine in your water and that high concentration kills. Things like algae and bacteria and helps break up chloramines chloramines are also known as combined chlorine combined chlorine happens when free chlorine in your water gets used up after combining with contaminants.

Using a chlorine shock. Like cal hypo or dichlor shock. Once a week will help kill contaminants and break up any chloramine buildup. You can also use a non chlorine shock to get rid of chloramines in your pool.

But it won't kill algae growth. If you have any more questions about what type of shock is right for your pool be sure to check out our other video. So how much shock. Should you add to your pool.

A standard dose of chlorine shock is one pound of shock per 10 000. Gallons of water but always double check the product label before adding it to your pool. The goal is to quickly raise your free chlorine levels to at least 10 parts per million or higher this will increase your free chlorine and decrease your combined chlorine your free available chlorine levels should be between 1 and 3 parts per million. With 3 parts per million being ideal your combined chlorine levels should be no more than 05.

Parts per million or as close to 0. As possible if you need help understanding how to calculate and test for your combined chlorine check out our other videos. Now if your combined chlorine levels are a lot higher like three parts per million. You'll want to add a double dose of shock regular weekly shocking can keep your free and combined chlorine levels in the right place just be sure to balance your ph and alkalinity before shocking your water.

So the shock can work more effectively and always test your chlorine levels before and after shocking but how much shock should you add to kill algae. Shocking your pool with a double triple or even quadruple dose of shock is the most effective treatment for algae. If you have light green or teal green pool water. This is early stage.

Algae growth. So you'll need to double shock your pool with two pounds of shock per 10 000. Gallons. If you have darker green water or significant algae growth.

You'll want to triple shock your pool with three pounds of shock per 10 000. Gallons finally if you have black green or extreme algae growth. You'll need to quadruple shock. Your pool with four pounds of shock per.
10 000. Gallons. Remember. Only a chlorine based shock will kill algae.

A non chlorine shock. Can help refresh your free chlorine levels. But it won't actively combat an algae problem and algaecide won't work to kill a significant algae issue either it's more effective at preventing algae from happening in the first place if you need more help getting rid of algae in your pool be sure to check out our other step by step videos can a pool be shocked too much it is definitely possible to add too much shock. Especially if you have a smaller pool.

It can take much longer for chlorine levels to drop back down to a safe range. If you have less water so be sure to test your levels after shocking and do not use the pool. Until the chlorine has dropped back down to a safer range of about three parts per million finally can you use bleach or liquid chlorine to shock a pool. While you can technically use liquid chlorine or bleach to shock your water.

You'll have to use a lot more remember your goal is to quickly raise your free chlorine levels to 10 parts per million or higher. So regardless of which type of chlorine that you use test your water before and after using a super concentrated dose and that's it if you need more help with pool maintenance be sure to grab our free pool care cheat sheet at swimuniversitycom. Cheat sheet and if you found this video helpful leave a comment hit the like button and subscribe for more pool maintenance tutorials throughout the season that's it thanks again and happy swimming.

9 thoughts on “How much shock should you add to your pool? swim university”
  1. Avataaar/Circle Created with python_avatars Jake Cole says:

    Just soimething to keep in mind about adding chlorine to your pool. While green algae in your pool is considered a big problem, having too much chlorine in it is really more of a problem, for your health. Remember that chlorine is a poison and certainly is not good for you to swim/bathe in. Algae itself, while unsightly in your pool, does not make for an unhealthy pool. It can however indicate the presence of other pathogens in the water that could be dangerous for your health. I use chlorine sparingly, using just enough to eliminate the visible algae and then I like to expose the pool water to the sun (so take off the solar cover) for an hour or so to burn off most of the residual chlorine left in the water. So then, with chlorine levels at one or less, I then feel safe in swimming in the water. I often use the simple smell test, meaning that if I can smell chlorine in the water, I'm not swimming in it. I think we are encouraged by pool supply companies, to go overboard with the use of chlorine to keep your pool clean. I am pretty sure that if someone filled their pool with water from a lake where people swim all the time without any health issue, it would look like a swamp. I am not advocating that you let your pool look like swamp. Rather I am advocating care to use chlorine sensibly and with the knowledge that it is a poison that kills living things. I like the concept of a UV light or other more benign ways of keeping your pool clear and clean. Unfortunately, it appears that such systems are expensive, prone to breaking down, and require more maintenance. Using salt water in your pool seems like a good choice but then you are likely looking at premature wear on your piping and other parts in your pumping system. Plus the salt water still requires some chlorine to be added. I wonder if there are any other ideas out there to both keep your pool healthy and clear.

  2. Avataaar/Circle Created with python_avatars Nakul Upadhyay says:

    Very useful information, bang on target, keep posting such informative videos, any video on salt water chlorinator?

  3. Avataaar/Circle Created with python_avatars cocinando y más says:

    Can I add shock directly to my vinyl intex pool , 3000 gallons and what kind of shock can I use?? Are you in Barrhaven ?

  4. Avataaar/Circle Created with python_avatars Alister Jackson says:

    where else can we find such a great person to help us with our pools. Answer, NO WHERE. thanks for all the help that you give.

  5. Avataaar/Circle Created with python_avatars Louis Dorato says:

    This summer, even though I am adding shock when necessary, my total chlorine is constantly high, and my free chlorine is normal. The alkalinity and PH levels are correct, the pool water is as clear as a bell and there is 0 algae growth. I also did not use any algicide this summer. Excluding the possibility there is a problem with my test strips, can you suggest what can be done about this? Maybe use non chlorine shock to get rid of the total chlorine?

  6. Avataaar/Circle Created with python_avatars Kreative Circle says:

    Liquid shock is far more effective than powdered shock.

  7. Avataaar/Circle Created with python_avatars Michal Lempicki says:

    I have a brand new salt pool and it's our first season with it. Should I alternate between chlorine free and chlorine shock to help avoid algae growth? So far I've only been using chlorine free. Chemistry levels are fine right now.

  8. Avataaar/Circle Created with python_avatars FireTech432 Alarms&Electric says:

    Keep up the awesome content! 🙂

  9. Avataaar/Circle Created with python_avatars JL Bailey says:

    Your videos are super helpful. Many thanks!

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