I have a 30k in ground pool with a filter pump, polaris cleaner pump and de filter which is located down at the bottom of the pool. I also have a spa blower located next to the house and am not sure what the valves next to the spa blower do. I am attaching pictures and was wondering if someone could explain what they do. I spoke to the pool guy and he is not familiar with it.
I am attaching pictures so you can see my setup.