My swimming pool - too much chlorine,water is milky, what can I do?

OK for the pH would be in the range of 7.4 to 7.6. Total alkalinity reading of 80 to 120 ppm. Your chlorine readings can go to as high as 10.0 ppm but you should wait until the readings get to about 3.0 to 5.0 before using the pool. You should be running the pump motor/filter for a period of 8 to 14 hrs depending upon size of pool & the amount bathers. If the water gets cloudy increase the filter run time and or reduce the bather load. If the water is green add more chlorine & extend the filter run time & back wash the filter. Both of you did the right thing but failed to adjust the filter run time. More is better in the summer months. It may also be that you have not cleaned your pool filter ( the large tank - either metal, fiberglass or plastic). Back wash the filter ... D E or sand - which will give you a better water clarity. Note: if the water smells swampy or you smell chlorine .... add more chlorine being sure to use a good quality liquid chlor. at 12.5 % in strength. The stuff you find at grocery & big box stores is a poor grade of chlorine with only 5% to 10% in strength. Liquid chlorine will give you faster boost than will dry or tab chlorine. Another thing you may want to add to the water is chlorine stabilizer or sometimes called conditioner. The levels you need to obtain on this chem. will be around 70 to 90 ppm during the whole swimming season.

The chlorine will dissapate with time. Do not swim in it while the levels are high since your skin can get burned.

Time is on your side. The chlorine levels will eventually go down.