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Mike Carney
09-25-2005, 06:19 AM
I have 5 Briggs Vacuity toilets in my house and they are all about 7 years old. Two of the 5 periodically "run" unattended--the water level in the tank slowly drops to the point that the float drops and the tank refills to the top level.

I have replaced the flapper with a genuine Briggs repacement (I too have discoved that other brands do not work well) and cleaned up the seats--they do not appear to be leaking.

Where else could there be a leak? (floor is dry)

Terry
10-23-2005, 11:43 PM
http://www.terrylove.com/wc/briggs/vacuity_tank_bot.jpg
It could be one of these seals leaking.

plumber1
10-24-2005, 05:00 AM
It won't be the gasket between the tank and bowl.

My guess is if it isn't the flapper inside, you probably have a crack in the plastic flush valve assembly. It's that white stand pipe the flapper is connected to.

I haven't seen a brass flush valve in a long time. Is cheaper better?