Dealing with Cloudy Pool Water

“The Pool Lady” would like to thank all of our returning clients for your continued patronage, and to extend a BIG welcome to all of our new clients. We’re off to a very busy start this pool season!

It’s early in the season but we have already had to deal with a number of cloudy and green pool issues, so this week’s blog topic will address those concerns.

If you have already shocked your pool and find that it is still cloudy, you may be experiencing filtration issues. Pool water needs to be filtered, and if it isn’t being filtered properly, it doesn’t matter how much shock you’ve put into the pool.

If you have a sand filter, it could take a week or more for the pool to completely clear, even if it’s a good working filter.
If you have a cartridge filter, it should be cleaned daily if your pool is cloudy or until the pool is clear.
If you have a DE filter and the pool is cloudy, either the filter isn’t being backwashed properly or it isn’t working properly. Be sure the pump is running on a long enough cycle, and if your pool remains cloudy then the filter may need repairing, as a cloudy pool can be caused by a bad filter.


If your pool is green, high levels of the wrong chemicals could be the issue. Levels of stabilizer can rise over time and can cause the chlorine to become an ineffective stabilizer. Even if you get a high chlorine reading – the chlorine is not able to work. High phosphate levels can also cause algae problems, and can be treated with phosphate remover.


Remember to always test the water before applying shock to your pool. The pH level ideally should be low to start with because shocking the pool will raise that level.  Run the pump and allow it to circulate for 24 hours, and your water should then be blue or a cloudy blue. If your filter is working properly you won’t need a clarifier.

The “Pool Lady” is always here to answer your questions, so please don’t hesitate to ask me about the best products to use in your particular case.

You’ve invested a pretty penny in having your own backyard pool, and I can’t stress enough how important it is to maintain it. You can liken it to your vehicle, with proper maintenance it will serve you and your family well for years to come.