Originally Posted by golfgal
My "handyman" has struck again... Both now require you to hold the handle down
for several seconds for the toilet to flush completely.
At the other end of the handle/chain is the flapper...
that appears to not be staying open long enough on it's own.
It should stay up on it's own with the water turbulence before resettling.
Continued tweaking the chain length might/should get you to the "sweet spot"
The old flapper (probably) had a better float in it...
or the chain length was tweaked better