Hey Rich !! What’s your yard and neighbors yard look like ? I ask because a 300 range filter would do fine with filtering just your water, but if you have trees/pollen or other various crud it would struggle when everything was dropping. Scratch that, it never struggles, it does it’s job and filters, but you’d be dirty 40% quicker than a 500 sq ft.
Think of it as how many 5 gallon buckets of crud blows through you yard. It all stops at the pool like a snow fence. So you get whatever actually falls in, *plus* whatever blows in and sinks immediately. If you never get enough stuffs to fill a 5 gallon bucket, the smaller filter only needs to to regular water filtering. If you get multiple buckets you’ll need the bigger filter.
If you were to go with a 300 range, The worst that can happen is you need to break apart the filter and clean it once or twice during pollen / farm dust season. But it gets old on year 7... or 2. Lol.
Kinda like SWGs, The original buy in costs the bulk of the money. It’s only a couple hundred dollars to go bigger and you’ll thank yourself many times down the road when you don’t even remember spending that $250.