My house is 4 years old. There are three toilets – two on the third floor, and one on the second. The water heater and associated plumbing is on the ground floor. All 3 toilets have the same problem – every once in a while (many times a day) one will run for just a second. Water is spilling from the tank into the overfill tube.
A friend said I should get an expansion tank, that the water pressure coming into the house is the problem and that an expansion tank would fix it. Does this sound right? Thanks!
Actually, I remembered wrong – water is NOT spilling into the overfill tube – the water level is about an inch or so below the top of the tube.
But I do see water dribbling into the back of the toilet bowl, and if the water gets low enough and the float falls enough, the refilling of the tank is triggered. Do I have a bad seal somewhere, and would this be solved by my friend’s suggestion of an expansion tank?