Hi! I'm taking care of a friends 24' above ground pool while they're on vacation. She uses the BBB method as do I. She's had algae problems most of the summer. Not sure if this is normal for previous years. CYA is 40. I tested yesterday with 20 being result so added 2 pounds to get it there. I know that could be part of the problem. Noticed today the return eyeball is not positioned well, just moving top part of the water. I tried to reposition but couldn't loosen the collar. Saw lots of dead algae on bottom of pool when I brushed. She has an Aquabot pool rover Jr. that I don't know anything about but have brought up the owners manual online so I can educate myself. Will that help keep things moving on the bottom until they return home and can take care of the eyeball situation themselves? Thanks for the advice!