Toilet either doesn’t flush all the way or lets all the water out of the tank?
I have a Fluidmaster adjustable flapper and it’s brand new. No matter what setting I move it to, I can’t get the right flush. It will either let all the water out or will barely flush at all. Even when just moving from a 6 to a 7 I have that dramatic of a difference.
The chain has about 1/2 in of slack and this was installed by a plumber during a partial tank rebuild. The chain isn’t getting caught under the flapper.
Is the flapper defective or could I have another problem?