I ask because in my sample size of exactly *2*, I have had poofing more often than not since 2012.
At my first house I started with 160 oaks on an acre and over a decade dropped half of them. The aerial debris and pollen was insane.
Then we moved to a wide open yard on a farm and while entirely different, the farm dust and pollen has the same end result.
If all we have to go on is the poofing, it could be solely environmental which seems to be the case at the times you're passing OCLTs.
To be clear I am not suggesting any lessening of due dilligence. Scour every inch to rule them out. Maintain an elevated FC level anytime crud is being dumped in the pool as evidenced by the poofing, while the OCLT passes. But sometimes it'll just be the enviornmental crud sending you on a mustard algae side quest that you seemingly can't complete.
At my first house I started with 160 oaks on an acre and over a decade dropped half of them. The aerial debris and pollen was insane.
Then we moved to a wide open yard on a farm and while entirely different, the farm dust and pollen has the same end result.
If all we have to go on is the poofing, it could be solely environmental which seems to be the case at the times you're passing OCLTs.
To be clear I am not suggesting any lessening of due dilligence. Scour every inch to rule them out. Maintain an elevated FC level anytime crud is being dumped in the pool as evidenced by the poofing, while the OCLT passes. But sometimes it'll just be the enviornmental crud sending you on a mustard algae side quest that you seemingly can't complete.