We had a Korky fill valve that made incredibly loud, screeching noise every time one of us flushed the toilet. The sound got louder and louder to the point where I could not stand anymore. I will never buy another Korky fill valve again. I picked up Fluidmaster’s Universal High Performance All-in-One Toilet Repair Kit instead for $32.
The job took me an hour and a half instead of ten minutes or less as the product has claimed. I am not a handyman at all. What took the most time was detaching the tank from the bowl. The screws were tight and rusted; therefore, they were hard to come out. The rest was straightforward and there was no leak. I hated working with water because I always worried about the leaks. This job turned out well.