I have a slow Flushing toilet
I checked the septic tank it was ok but had it pumped anyway.
I used a sewer snake from the septic tank toward the house,aprox 25' twisted it around and brought back nothing, no paper nothing.
Flushed the toilet and watched pipe into septic, flow looked ok, it did not dribble, about like a garden hose
I pulled the toilet, drained the water, looked underneath see nothing.
Used sewer snake from toilet to septic, seen snake in septic pipe, it pushed very easy, and nothing on the end.
Put everything back together and still no luck.
Tonight checked vent pipe from roof, clear and clean.
Went to crawl space looking for leaks
along sewer main line, none.
I have used Hot water 2gal bucket and flushed with toilet paper in it and it goes but very slow.