I have the 1.6 flush but lately it has the following symptom; it seems to flush like the old toilets with 3 gallons. It has a dice shaped float above the flapper. No matter where I put the float it does the same. I think the problem is because there is some slack, about an inch, between the arm which holds the chain and the float. I cannot unhook this to make it tighter because [U]my fingers are not strong enough to pinch it free[/U]. I used to think there should be no slack. Is my best bet to get a new flap, chain and arm with no float or is there a trick to unhooking that chain that is pressed into the plastic arm? Thank you

We have a Mansfield 1.6 gpf toilet. It was plugged up and plunged to get it open. Now when you flush it, a large air bubble comes out of the flush hole. It is enough to spray water water up into the toilet.