Pool and Spa
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Thank you for using JustAnswer! The key to clearing up your green water problem is to overchlorinate the water in one shot. If you add small amounts of chlorine over a 5 day period it is never going to be effective, because you are not adding enough chemical to kill ALL of the algae. The analogy I use is if you have a fire in your house, you are going to douse the whole place with water all ot one time. You are not going to put part of the fire out over a 5 day period. Here is what you do. Add 4 times the amount of chlorine that you normally use all at one time. The basket and filters on the pool need to be cleaned 1 to 2 times per day and the pump needs to run for 24 hours for up to 4 days. Without enough chlorine and good filtration it will be a losing battle as the algae will grow faster that what has been killed. If everything is done correctly, the pool should go from green to cloudy to clear over a 3 to 4 day period. Please feel free to post any follow-up questions.
You will need to increase the chlorine in the water. Adding the chlorine in small increments over a period of time is not sufficient enough to kill off all the algae. You are killing some of the algae growth, but the remaining continues to grow. You need to add enough chlorine in one shot to kill the algae and then run the filtration pump 24 hours for a few days continuously. The filters need to be cleaned daily or they will clog up and reduce the filtration effectiveness. Adding an extra chlorine tablet is probably not going to be enough. Pool chlorine is what kills algae. Algaecide is for pool maintenance and is not going to kill the algae. Your pool is probably around 8000 gallons of water so I recommend adding around 3 gallons of chlorine to the water to reach the super-chlorination level. Remember to run the pump continuously and clean the filter daily. The water should clear up in 3 to 4 days. You will more than likely have to vacuum the pool out really well also.