I have a Korky fill valve (with no float) and the water level in the tank is so high it drains into the overflow tube. It worked fine for years. Any thoughts greatly appreciated!

This may help. Click on http://www.korky.com/PDF/4030.pdf for the installation sheet and adjustment instructions Good luck, Tom

That should do it, helping a neighbor out. Thanks Tom

Warranty has expired.

Product will be free from material defects in workmanship and materials under normal use and service for a period of 5 years from the date of purchase

Purchase replacment cap.

See this link for replacement instructions.
http://www.korky.com/PDF/R528.pdf

Hey Harold,
Pudgomey's asking how to adjust the ballcock, I don't think that any replacement parts are necessary, But thanks for the link, I added it to my data base, Tom

Tom, he said.

Korky fill valve (with no float)

Tom, he said.
Harold, He meant he didn't have a float ball. And wasn't familiar with the ballcock. The float's built in.
extend upper tube to
Proper height. Hand-tighten locknut. Top of
Flush valve should be no more than 3/4"
above water line marked in tank. Verify top
of flush valve is at least 1" below bottom of
Flush lever nut. The upper tube's the float and he simply wanted to know how to adjust it. Regards, Tom