To get rid of green water from a pool start by using a chemical test kit to test the chlorine and ph levels.
Clean green swimming pool water.
Clean the filter often during this process.
Start off by adding 3 or 4 gallons and if you see no results overnight add 3 or 4 more gallons the next day.
The green water is probably algae which is unhealthy.
Continue this process until you notice the water changing color to either cloudy white light green or clear.
You can however try to clear the green pool water first before choosing the nuclear option.
You can drain all the water but unless it s too green and borderline black there is no need to drain all the water.
There will definitely not be any swimming enjoyment while the water is green.
If the pool has been shocked and is no longer green but turns green again after a day or two check the water chemistry and pay particular attention to phosphates in the water.
Then cleaning is much easier than draining.
Test the ph levels.
Then add sodium bicarbonate to increase the ph or sodium bisulfate to decrease it.
This can be done by shocking your pool with high levels of chlorine.
You can check your filters here too and clean them up for the next step if you wish.
If your pool is dark green bordering on a blackish color it may be more effective to drain the pool completely and acid wash the surface.
The only way to clean a green pool fast is to kill the algae that have bloomed in the water.
If even after knowing why your pool water turned green your swimming pool has become an abode for algae and bacteria time to clean it.
Method shock level and maintain.
The experts at trouble free pool coined the s l a m.
Green water or any color other than pristine clear is a dangerous situation waiting to happen.
Rob at dengarden says if you can see at least six to eight inches below the surface of the water most likely the pool can be treated chemically.
Next clear any floating debris and scrub the sides and bottom of the pool with a pool brush.
You don t even want to think about a child falling into the murky water and not able to be seen.
Other than that you can shock the pool to clean it.
Shock the green pool.