What can you do if your swimming pool is foggy or milky looking?
I too had milky water in my pool. I also have a chocolate lab dog who loves the water. I found that with allowing the dog to swim would turn the water milky and that a "slime" would develop on my filter and in my filter housing. I can't deny the dog but I can limit the number of swims. My pool is small so it's not hard for me to fix. I change the filter or clean it real well every day for a couple of days following one of her swims. I also heavily "shock" the water at the end of the day for 2 days after her swim. If the cause of you milky water is a 4 legged friend, this has worked for me.
Ah, yuck! Do you realize the germs on a dogs body. Milky and slime more YUCK! Extend the filter run time if you insist on having a dog swim in your pool. As a pool service person, I wouldn't even put my toe in the pool under those conditions. Milky water is caused by many things but lack of filtration is one and lack of a sanitizer is another. You are subjecting yourself to a multitude of germs and bacteria. Diarrhea, e-coli are but a few found in pools. Oh, horrors of horrors!
If the swimming pool water is milky, it is advisable to have the level of stabiliser (cyanuric acid) tested. A level of over 80ppm in the pool water is likely to lead to "chlorine lock" which can turn the water milky. If the problem is the stabiliser, you will need to drain some of the swimming pool water and refill with fresh water to bring the stabiliser level down to 30-50ppm. To avoid the level…