Is pool shock and chlorine the same thing

1) What is the difference between chlorine and shock? … Shock is chlorine, in a high dose, meant to shock your pool and raise the chlorine level quickly. Chlorine tabs (placed in a chlorinator, floater, or skimmer basket) maintain a chlorine residual in the water. You do need to use both tabs and shock.

Can I use shock instead of chlorine?

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.

Can you shock and chlorinate a pool at the same time?

It Should Not Be Done Together. While shocking and adding algaecide is effective in getting rid of algae, it should not be done together. This is because when you mix chlorine and algaecide together, it renders both of them useless. … Only then should you introduce algaecide to get the best results.

Do you need pool shock and chlorine?

In general, you should shock your pool when: Algae begins to grow in your pool. The free chlorine level of your pool measures zero. The chloramines or combined chlorine level rises above 0.5 parts per million (ppm).

Should I shock my pool before adding chlorine?

Chlorine has a low pH level, and in order to maintain your pool water’s clarity and balance, shocking weekly will allow you to quickly raise the chlorine level, which will rid the pool of contaminants, without lowering the water’s pH levels.

How often should you shock your pool?

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.

Can you over shock a pool?

You cannot overshock a swimming pool or add too much. Adding too much shock or overshocking your pool will kill off algae. The negative of adding too much shock is it will upset the chemical balance of your pool. It’s likely to do that regardless of if you overshocked the pool or not.

How long does pool shock last in pool?

We typically recommend using a calcium hypochlorite (cal hypo) shock when super chlorinating a pool. Just keep in mind that this type of pool shock has a small amount of calcium and will cloud the water for up to 12-24 hours in certain situations.

How long after shocking pool will it clear up?

Keep your pump and filter running. Give the shock a good 12 to 24 hours to work it’s magic. If the algae hasn’t cleared up after 24-48 hours, clean and brush the pool and add another shock treatment.

Why is pool shock so expensive?

The reason why trichlor tablets are so expensive and why they are sold out at many pool supply stores is because of the national trichlor supply shortage. …

Article first time published on

How many pounds of shock do I need for a 30000 gallon pool?

Typically for granular shock, you’ll need one pound for every 10,000 to 13,500 gallons of pool water. With over 8 million residential swimming pools across the US ranging from 5 thousand gallons to over 30 thousand gallons, the amount of shock you need to treat a swimming pool isn’t a one-size-fits-all answer.

Do I add chlorine after shock?

The best time to add chlorine to the pool water is after you have shocked the pool. The chlorine level will fall below 5 parts per million.

Is liquid chlorine better than shock?

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. … Chlorine is the most cost-effective way to sanitize your pool. It has been the product of choice for almost 100 years.

Why did my pool turn green after I shocked it?

Pools can immediately turn green after shocking when they have metals like copper or iron in the water. These metals oxidize when exposed to high levels of chlorine which makes the pool water turn green. Metals in the water are caused by some algaecides and using well water.

Is it OK to shock your pool on a cloudy day?

If the pool is still very cloudy or green, you may need to shock it to make it safe to swim in again. First, make sure that the filter system is working properly and the chemicals are still at the proper levels. Next, mix up your chlorine shock (hyperchlorinate) treatment.

Why is pool cloudy after being shocked?

But if the cloudy water persists long after you’ve shocked the pool, you’re likely having an issue with water balance, circulation, or filtration. Heavy use of a calcium based pool shock (cal-hypo) may increase Calcium Hardness over a period of time, increasing your odds of cloudy water.

Should I cover my pool every night?

You should cover your pool every night for several reasons. First off, a pool cover saves energy and conserves water by decreasing the amount of make-up water. Also, it reduces the consumption of chemicals, and finally, it saves a lot of cleaning time since it keeps the debris out of the pool.

Do you need to shock salt water pools?

Should you add shock to a salt water pool? It’s absolutely okay to shock your salt water pool, and is actually pretty important! … Running your pool’s super-chlorinate feature too often is hard on the motor and will cause it to wear out faster.

Do you need to run the pool pump after shocking?

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.

How do I make my pool water crystal clear?

In theory, if you have a cloudy swimming pool, you can add chlorine to “shock it” and clear things up. Chlorine will get the job done. But, the amounts may vary and you may have to really pound the pool with chlorine to get the water totally clear.

Can I swim 12 hours after shocking pool?

And how long do you have to wait before you can swim? You should wait one hour per pound of shock product added, and then test the water to confirm the pH and chlorine are in the proper range before letting anyone enter the pool.

Do I have to shock my pool every week?

It’s often recommended to shock your pool once a week. If you don’t do it every week, you should at least do it every other week. This is necessary to maintain your pool’s water chemistry. If you have a lot of people over in your pool or have a party, you may want to shock your pool more frequently.

Do pool chlorine tablets go bad?

Do Chlorine Tablets Go Bad? The simple answer to this question is yes. Like any chemicals, chlorine tablets go bad if left long enough or improperly stored. Kept in the right conditions, however, and they can remain effective for over five years.

Can I use bleach instead of chlorine in my pool?

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.

Why is chlorine so expensive 2021?

The prices also have been driven up by increased demand, fueled by the coronavirus pandemic. A report from Goldman Sachs released in April 2021 said about 96,000 pools were built last year in the U.S., with an estimated 110,000 expected to be constructed this year.

What can I use instead of chlorine in my pool?

Chlorine Alternative #1: Bromine Both bromine and chlorine are halogen elements that are chemically related, but exist in different states of matter at room temperature—chlorine is a gas, while bromine is a liquid. Bromine is the only chlorine alternative that doesn’t require you to purchase additional equipment.

How much shock Do I put in a 4000 gallon pool?

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.

Can I swim in my pool after shock?

After you shock the pool — As soon as your chlorine levels reach 5 ppm or lower, it’s officially safe to swim. Depending on the type of shock used, as well as the amount used, it can take anywhere from 24 hours or even up to a couple of days.

Is shock the same as bleach?

The “chlorine” in “chlorine bleach” is actually sodium hypochlorite. Swimming pool shock contains 12.5% sodium hypochlorite (bleach) vs. … At a 12.5% concentrate, liquid pool shock is approximately 2x’s stronger than Clorox bleach.

What is the best brand of pool shock?

  1. In The Swim Chlorine Pool Shock — Best Overall. Check Latest Price. …
  2. Clorox Pool&Spa Shock Plus — Best Value. Check Latest Price. …
  3. Doheny’s Super Pool Shock. Check Latest Price. …
  4. Aqua-Chem Pool Shocks. Check Latest Price. …
  5. Ultima Total Control Pool Shock. Check Latest Price.

Can I shock my pool two days in a row?

It’s pretty tough to over-shock your pool; shocking your pool two days in a row with the proper dosage for your pool volume shouldn’t be a problem – and in fact, is sometimes even needed to rid your pool of algae and other contaminants.

You Might Also Like