I am having a very bad time with algae. I've shocked, ran my pump for 24 hours added polyquat60 and still have green on the bottom of my pool in the morning. This has been going on for two weeks. I'm at my wits end.
Could it be that my filter cartages need replaced? They are 3 years old. I've just tested and my numbers follow.
Water Temp is 81
Any help would be appreciated.
Thanks in advance.