There will definitely not be any swimming enjoyment while the water is green.
Clean green swimming pool water.
Then cleaning is much easier than draining.
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.
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.
Clean the filter often during this process.
Continue this process until you notice the water changing color to either cloudy white light green or clear.
This can be done by shocking your pool with high levels of chlorine.
You can drain all the water but unless it s too green and borderline black there is no need to drain all the water.
Shock the green pool.
The experts at trouble free pool coined the s l a m.
You can test the sanitizer level too but facing facts we already know that s too low which is why you have green water in the first place.
The green water is probably algae which is unhealthy.
To get rid of green water from a pool start by using a chemical test kit to test the chlorine and ph levels.
Next clear any floating debris and scrub the sides and bottom of the pool with a pool brush.
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.
You don t even want to think about a child falling into the murky water and not able to be seen.
You can check your filters here too and clean them up for the next step if you wish.
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.
If your pool is very dirty it may need many gallons of liquid chlorine shock over a period of days before the water clears.
Start off by adding 3 or 4 gallons and if you see no results overnight add 3 or 4 more gallons the next day.
After shocking the pool filtration becomes a key factor in clearing up a pool.
Method shock level and maintain.
Then add sodium bicarbonate to increase the ph or sodium bisulfate to decrease it.
The only way to clean a green pool fast is to kill the algae that have bloomed in the water.