Yesterday my neighbor, who has a home improvement business, installed this toilet for me. I do like it but how can we stop the valve from constantly turning off and on?? About every 15 seconds or so the valve with seep a tablespoon or two of water. We've checked the depth of the refill tube and it's and inch below the overflow pipe as directed.
He took the top of the fill valve off and quickly flushed it with water from the new supply line thinking there might be some sort of grit in there. This was done twice but it still continues to turn off and one. What else could be the problem?? The fill valve is aligned correctly according the instructions and the pictures in the installation book. Does anyone have any suggestions to remedy this annoying problem??