Try and take your chlorine a little higher. And, although I know it may be inconvenient, you really gotta at least test and hit it with bleach no less than twice a day or you're never gonna get this pool clear. You always lose some of your chlorine to UV rays during the day. So, chlorine loss at night is a tell-tale sign that you are still killing algae.

As a side note to anybody reading this thread: Even when you are not fighting an algae bloom, this is why we recommend adding bleach at night instead of during the day just for routine maintenance, so all the chlorine can go towards sanitation of the pool and is not lost to UV.

The good news, Mike, is that you are not going to spend 40 days clearing this pool this year. You'll see. A few more days and it is going to sparkle!