New member and this is my first post. I have a 35,000 gal salt water pool that up until a few hours ago was beautiful. Around 10:00 this morning I left home and when I I returned around 2:00 this afternoon, my pool was totally green. PH was good as I added a little acid this morning and also added a little chlorine as It was a bit low. The weather here today is very hot and humid. I just can't believe how fast this happened. I am shocking heavily right now.