How much liquid chlorine to shock a pool with algae? The minimum chlorine amount required for this is 30 ppm. Factors that lead to algae outbreak in a pool are many bather load, high temperature levels and more sunny days. Algae spore may turn sparkling pool waters into green color murky mess if there is no any apparent warning for this.

How Much Liquid Chlorine to Shock a Pool with Algae

The minimum chlorine amount required for this is 30 ppm.

Why You Should Know This

Pool owners should never worry about this since it’s little education that is required to resolve such a problem. In case we assume that pH adjustment has been done and the water in the pool is clean, you should consider resolving your problem by simply adding granular chlorine to the pool. In the market, you will find out that most pool shock packages state addition of 1 lb. shock in every 10,000 pool water gallons.

Many people may be asking what might happen in case a less dosage for this is added, for this, a more combined chlorine can be created and thereby exacerbating the problem at large. To others, 30 ppm, seem to be such an excessive amount but then, this is truly the minimum required amount to resolve the problem. This is what is needed to break into the algae cell nucleus so that it’s DNA structure, so, its replication will become much impossible thereby killing it. As a pool owner, you need to know that chlorine sanitizers are usually with varying strengths, so, different dosages are required to bring about desired results for different pools.

To resolve this problem, there is need first an individual to determine the type of algae a pool has developed. There normally exist three types of algae namely; the standard green algae, the dreaded black one, and the stubborn yellow type.

How to Kill Algae

The best weapon to eliminate this problem is the use of chlorine. Begin by determining the amount of algae in your pool. In case you notice your pool is maybe light green, or you see little black or yellow algae, there is need to consider double shocking the pool to resolve the problem. For this case, you are required to use a shock of 2 pounds for every 10,000 gallons of pool water.

In case the pool is dark green in color, or there are heavy black or yellow algae spots, there is a need for triple shocking the pool. Here, for every 10,000 gallons of pool water, you are required to use 3 pounds. For the case the pool has been infested with black and yellow algae, quadruple shocking is the option to go with, for every 10,000 gallons of pool water, you are required to use 4 pounds of it. To achieve better results in case the pool is very infested with algae, repetitive shocking is required to completely destroy the cells. Keep in mind that the best time to shock a pool is when the sun is down.  

Bottom Line

You should be patient for a couple of days to see if the problem completely disappears. If that happens, then the problem would have been resolved well. To prevent the problem from developing again, you need to keep brushing and always maintain a close eye on the chemical levels to ensure it doesn’t return some other time again. So, how much liquid chlorine to shock a pool with algae? A minimum amount of 30 ppm is what needs to be considered to resolve the problem.