OK, newer regular toilet. Slight leak internally, so it refills every 20 minutes or so after losing some of the water in the tank.
No probably with the fill valve. Not hitting overflow. Float works perfectly.
First try was assumption that the flapper was dirty or had something in the way. Cleaned it, reseated, etc. - no fix.
Replaced flapper with premium one. Made sure to clean the surface that it seats against very well. Also cleaned any small grit from the tank to make sure of clean water. No fix.
Looking inside the toilet bowl, I can see a very tiny amount of water feeding in from the top along one of the sides - a tiny rivulet!
Is there anything else it could be? These things are usually pretty simple!
No probably with the fill valve. Not hitting overflow. Float works perfectly.
First try was assumption that the flapper was dirty or had something in the way. Cleaned it, reseated, etc. - no fix.
Replaced flapper with premium one. Made sure to clean the surface that it seats against very well. Also cleaned any small grit from the tank to make sure of clean water. No fix.
Looking inside the toilet bowl, I can see a very tiny amount of water feeding in from the top along one of the sides - a tiny rivulet!
Is there anything else it could be? These things are usually pretty simple!