Last Updated on April 29, 2021 by Shain Jorgensen
With all their beauty, pools can get quite frustrating once they are contaminated. It takes just a single bacteria for the entire pool to turn green in a matter of days. It is therefore important for pool owners to keep on cleaning and monitoring the pool to avoid a situation where it goes green.
There are various scenarios where a pool may turn green and various causes. In some cases, it might be due to rainwater runoff dirtying the pool or it might be due to algae infestation. The good news is that rainwater runoff contamination can easily be cleaned by pumping the water out and disinfecting the pool with chlorine.
If the pool turned green overnight, there are a few steps to follow to get it cleaned. Keep on reading to see how the pool can be cleaned.

What Causes a Pool to Go Green?
There are two main causes of green pool water. The most common being lack of chlorine in the water. If the pool does not receive chlorine, algae start growing and may quickly turn the entire pool green. Secondly, the occurrence of a green pool after rain is common, due to dirty water runoff.
Can You Swim in a Green Pool?
While swimming in a green pool is possible, the venture comes at a greater risk that is not worth the pleasure. If the pool turned green overnight, chances are that it is infected with algae, which can be toxic. Cyanobacteria found in green pool water can kill a person in a matter of hours if consumed.
Below are the 6 steps to clear a green pool:
1. Shock Pool With Chlorine To Kill Algae
Before the pool gets infected, it’s required to be continuously chlorinated. If the pool is green but chlorine is high, chances are that you missed chlorinating for a while. Once algae start growing, even chlorination may not work on turning it from green.
2. Pump and Vacuum the Pool
In the case of a green pool after rain, the best way out is to pump the water out and vacuum the entire pool. Vacuuming ensures that all traces of algae are removed from the water before it turns green.
3. How to Clean a Green Pool Fast With Pool Brush
Even after pumping and vacuuming, it is necessary to scrub the entire pool with a pool brush. A pool brush is a tough brush that ensures that all traces of algae are scrubbed off the floor and walls to remove green pool water.
4. How to Clean a Green Pool With Bleach
The only way to clean green pool water above ground is with bleach. The steps on how to clean a green above-ground pool include adding bleach to the water and using a pump and vacuum to later clear the water out.
5. How to Clean a Green Pool Without a Pump
Once the pool turns to green pool water, it is never easy to clean it without a pump. Hover, proper application of chlorine with the constant balancing of the PH might help. In case the pool is green but chlorine is high, pumping might be the only option left.
6. How to Find the Best PH Balance for Green Water?
The risk of the pool getting contaminated and turning into green pool water is apparent in every pool. Thankfully, at PH Balance Pool we know how to clean a green above-ground pool and keep it algae-free. For the best pool filter cleaning Gilbert, we are trusted in the communities we serve.
For regular pool maintenance, including cleaning, disinfection, and algae removal, contact us with your request and we will get back to you as soon as possible.