What level should chlorine be to shock pool?

between 10 ppm and 30 A chlorine level of between 10 ppm and 30 ppm, sustained for several hours, is usually needed to remove algae, bacteria and chloramines. Super Shock can deliver 10 ppm per 10,000 gals, per 1 lb. bag, in good water conditions – you may need more.

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.

What should free chlorine be if CYA is 60?

This may be due to the high chlorine level within the cell. For indoor pools we recommend CYA between 20 and 30ppm….More videos on YouTube.

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CYA (Stabilizer)	Minimum FC	Target FC
30	2	4-6
40	3	5-7
50	4	6-8
60	5	7-9

How much shock Do I need to raise free chlorine?

roughly 10 times The goal of shocking your pool is to raise the free chlorine level of your pool water to roughly 10 times the combined chlorine level of your pool water.

Should I shock pool if chlorine is high?

If your total chlorine level is high, you will use a non-chlorine shock; if it is low, you will use a chlorinated shock. As a rule, you will need to raise free chlorine to 10 times your combined chlorine to hit what is known as “break point.” Therefore, it is good to deal with combined chlorine while it is still small.

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How do I raise the free chlorine in my pool?

Raising pool chlorine can be much easier than trying to lower chlorine levels. Simply adding chlorine in the form of chlorine tablets, granular chlorine, liquid shock or powder shock will increase the total amount of chlorine within the pool.

Can I shock my pool 2 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.

What does it mean when free chlorine is low?

What causes low free chlorine in pool? Things that cause low free chlorine levels are excessive sunlight, high bather loads, and improper water chemistry. Not having enough chlorine in your swimming pool will also cause the little bit of chlorine that’s in there to be used up faster too.

Does CYA reduce over time?

Because cyanuric acid stabilizes the chlorine molecules and keeps it from breaking down in the sunlight, it’s essential for anyone with an outdoor pool. It’s such a popular product because it maintains chlorine levels effectively and reduces the amount of time you have to spend maintaining proper levels in your pool.

Why is my free chlorine so low?

Does shock increase free chlorine?

Free chlorine is just that, free. Free to interact with other chemicals, algae, bacteria or the like. Shocking then releases the combined chlorine and off-gasses the contaminants, increasing the amount of free chlorine in your pool or spa.

How do I know what shock level to maintain in pool?

To understand the shock level to maintain in your pool depending on your Cyanuric acid level, refer to Chlorine/Cya Chart by trouble free pool.

What is a recommended shock level?

Recommended shock levels are designed to break down contaminates reasonably quickly while posing minimal risk to the pool. It is impossible to know in advance just how much chlorine will be required to SLAM the pool. Instead, chlorine is added to maintain shock level until testing shows that the process is complete.

What should my shock level be if my CYA is 40?

If your Cya level is 40ppm, your shock level will be 16ppm and the lowest level free chlorine can go before adding more chlorine is 7ppm.

What is Slam in swimming pool testing?

Since the SLAM process involves testing FC levels and adding more chlorine in a swimming pool, you need to be aware of your Cyanuric acid (Cya) or chlorine stabilizer level so that you raise your FC level depending on the level of Cya in your water.