Pool Still Green After Shocking

Why has your pool remained green after you shocked the water? Find out what you can do to fix this issue and restore the water’s bright blue color.

Chemical Composition Of A Clear Water Pool

There are several factors that go into making pool water appear clear. For instance, pool professionals suggest pH levels stay between 7.2-7.8 with the intention of using the pool every day. Alkalinity differs from pH levels, as it measures the water’s ability to resist change in pH. This makes it easier for both chlorine and pH ranges to stabilize.

If chlorine levels go unchecked for a long period of time, algae can take over the water. This will eventually result in cloudy water. Calcium hardness is one last factor to consider here. Higher calcium levels make it more difficult to dissolve calcium in the water. When levels become too high, pool filters may clog.

Why Is My Pool Still Green After Shocking It?

The experts recommend waiting at least 18 hours after shocking the pool before determining the water’s overall clarity. If the water remains cloudy after 24 hours, consider adding a pool clarifier and using the filter to remove remaining settlements, if necessary.

Adding a clarifier is the best way to evaluate the pool’s filter if the water remains cloudy. When the water stays cloudy, you’ll know it’s time to either perform filtration system maintenance or replace the filter entirely.

How Much Shock Should I Add To The Pool?

Essentially, shocking a pool is adding chlorine to make the water “super chlorinated.” For the majority of residential pools, 10 gallons of liquid chlorine or 5 pounds of granular chlorine can be used to shock the water. Reference your manufacturer’s instructions to see if either liquid or granular chlorine works best with your filter.

How Long Should I Run The Pump For?

Filters should run constantly for 24 hours after shocking the water to remove any cloudiness. Because algae grows faster in warmer weather, a pump will need to run longer in the summer months compared to the winter months. Your water should always be filtered, regardless of season.

Turnover rate is a measurement of how long it takes for the circulation system to move all the water through the filter equipment. The rate can be impacted by pool size, as well as the gallons per minute rating found on your pool pump.