I have a pool with a built in corner that's a spa. The spa always seems to have debris on the bottom of it. I had assumed that when the pool filtration runs, the spa filtration also runs? The spa jets are going when the pool filter is going but I'm guessing that the 'returns' on the bottom of the spa aren't actually sucking water from the spa at the same time?
How do I get the debris out aside from by hand or with a manual vacuum (since the Polaris doesn't go there either)