I have 3 Mansfield toilets in my home, and they are surging after each flush, and when the tank refills and shuts the water off, they will surge 3 to 4 times within 5 seconds to a minute after refilling the tank??

The Tank is NOT leaking down, so what is the problem??

Thank you kindly for any help you can give me on this one...

Marvin

I have the same issue. Did you figure it out?