No, I don't have a basement. Not sure where you saw that?
I’ve finished my 1400 sq foot basement with full bath, electric, plumbing, etc. and this seems way more complicated.
So long as you can get to it and open it .....I wonder if they could and would make easier if you asked? May not be worth the trouble though.
When you say aerators what do you mean? Do you mean deck jets? Have a pic??
So long as you can get to and work on the filter it should be good!
Maybe a nice awning built off the house to protect the equipment from the unforgiving AZ sun would be good addition.
Aerator. Here is the one I was thinking about purchasing - but do I really want something sticking out of the side of the pool like that?