I was out of town for almost three weeks. When I cam home, I noticed my pool was developing some algae. My friend was watching my house went swimming three days ago and said the pool was crystal clear.

So, I shocked it was some bleach. Today I got the water tested and all of my chemicals was in check.

My question: It has been extremely hot in Arkansas the past week with 98-100 degree weather. My filter was running about 7-8 hours. I increased it to run atleast 10 hours. I have been running it 24/7 till my water clears.

Was that the main reason algae was forming because my filter wasn't running long enough?