Is it OK to shock a pool twice?

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.

How many times can you shock a 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 I shock my pool twice in two days?

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.

Can you shock a pool too much?

Yes, it is possible to add too much shock. And if you have a smaller pool, it can take much longer for the chlorine levels to drop. Be sure to test your ph and chlorine levels afterwards and do not use the pool until the chlorine has dropped back down to 3 ppm.

How long after shocking a pool can you shock it again?

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. As a reminder, you want your pH to be between 7.2 and 7.8ppm and your free available chlorine to be 1-4ppm for safe swimming.

Can You Put Too Much Shock in a Pool?

Can I swim 30 minutes after shocking pool?

You need to wait for at least 8 hours and up to 24 hours after using a chlorine-based shock before you can swim. And you'll want to retest your water to make sure your chemical levels are within range. If your free chlorine is at or below 5 ppm and your pH levels are at or below 7.6, it's likely safe to swim.

Can you put too much chlorine in a pool when shocking?

Excess chlorine can alter the pH level of the water in the pool, making it more acidic. The acid levels can cause any of the following symptoms: Irritant dermatitis which is a red skin rash characterized by raised itchy red bumps. Eye irritation and over-dilated blood vessels in the eyes.

Is pool shock stronger than chlorine?

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.

Why is my pool green and cloudy even after shocking?

If your pool is green and cloudy, it's likely an algae problem. Algae can persist in a pool even after shocking. A green pool – especially one that turned green overnight or after rain, can also be from a pool pump that isn't properly circulating water or an issue with your filtering system.

Will shock clear a cloudy pool?

Chlorine issues often cause cloudy water. Adding a recommended dose of shock to your pool can clear it right up. Poor circulation or filtration can contribute to cloudy water.

Can I swim 2 hours after shocking pool?

In general, it's recommended that you wait up to 24 hours to get into a pool after it's been shocked, depending on the size of the pool, Alan said.

Can you swim the same day you shock a pool?

How long to wait until you can swim? The general guideline is that it's safe to swim in a pool 24 hours after shocking it. To be safe, test your chlorine and pH using a chemical test kit to see if they are in balance. Make sure your free chlorine level has returned to 3ppm or less.

Should I backwash after shocking pool?

You should then use your best vacuum cleaner to remove any remaining dust or dirt that remains. Once you have cleaned the pool, you should move on to the sand and DE filter. The expert says you should backwash them.

Can I shock my pool multiple days in a row?

Shocking your pool for two days in a row is a valid and recommended strategy to kill and get rid of algae. In fact, the reason why algae comes back quickly is that the chlorine levels were not high enough for long enough to kill it off properly.

How do you clear a green pool overnight?

Shock Your Pool with Chlorine to Kill Algae

This is the main event in clearing a green pool—killing the algae. Pool shock contains a high level of chlorine that will kill the algae and sanitize the pool. For the best results, use a shock that contains at least 70% available chlorine (calcium hypochlorite).

Does too much chlorine make pool green?

When the levels are properly balanced, chlorine will keep the algae at bay, but the water will slowly begin to turn green as the algae take over if there's not enough. But be careful—adding too much chlorine in pool water can cause those metals to oxidize and turn the pool a different shade of green.

How do I turn my pool from green to blue?

Is pool shock just bleach?

Swimming pool shock contains 12.5% sodium hypochlorite (bleach) vs. 6-8.5% for Clorox (bleach). Some Clorox products go as high as 8.5%. At a 12.5% concentrate, liquid pool shock is approximately 2x's stronger than Clorox bleach.

Do I need chlorine if I use shock?

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. Without tabs, the chlorine shock will dissipate quickly out of the water; without shock, the chlorine level will not get high enough to fully sanitize the water.

What is the best shock for algae?

Dealing with algae or green pool water? Cal-hypo is the best shock treatment for you. It's powerful enough to kill contaminants and stop algae growth (similar to an algaecide). However, it may require multiple doses, depending on your situation.

Why is chlorine low after shocking pool?

That means that oxidation levels have increased to a point where chlorine is being consumed faster than it can be put into the water by either shocking or normal applications such as a salt chlorinator. The cause of this could be due to contamination, low pH or low chlorine stabiliser levels.

Does pool shock raise pH?

Some types of pool shock, including cal-hypo and liquid chlorine, will raise the pH slightly. Stabilized dichlor shock has a near-neutral pH. Depending on the severity of the algae, 10–30 ppm chlorination is needed to kill active algae blooms.

What to do if you keep shocking your pool but chlorine still low?

If you just added chlorine or a chlorine-based shock to your pool and you still have a low chlorine level, there's a chlorine demand problem. In order to cure chlorine demand, triple shock your pool with calcium hypochlorite or cal-hypo shock. Add three pounds of shock for every 10,000 gallons of water in your pool.

Why is my water still green after 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.

Do you run the pump when shocking pool?

Prepare shock ahead of time in a 5-gallon bucket of pool water and stir. Ensure the pool pump is running. Pour the mixture from the bucket into the water around the edges of the pool. Let the pump run for about 6 hours or more and test the water.