Have you recently replaced the fill valve and flapper ?If so make sure they are interchagable and can produce close to the same GPF as original hardware.Fluidmaster has a tall tube that can be cut according to tank depth to accomidate water volume in tanksome times a little more water volume will do the trick.Also make sure flapper is staying open long enough to produce the required results.
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Have you recently replaced the fill valve and flapper ?If so make sure they are interchagable and can produce close to the same GPF as original hardware.Fluidmaster has a tall tube that can be cut according to tank depth to accomidate water volume in tanksome times a little more water volume will do the trick.Also make sure flapper is staying open long enough to produce the required results.