I need help troubleshooting our toilet. About a month ago, I had to replace most of the interior mechanisms of the toilet after the old ball float arm broke in two places, including the top of the valve. It worked great for a while, but lately it does not shut off by itself. It keeps running, even after the water has over-topped the overflow pipe.
It will stop filling if the ball float is manually raised the fraction of the inch needed. The float rises most of the way on its own, it just won't go up that last little bit to shut the valve off. There are no obstructions to the ball float rising, and I have adjusted the screw in both directions, with no effect. This seems like it should be a simple fix, but it's driving me nuts.
By Camilla from Atchison, KS
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How do you adjust the float in the commode tank to lower the amount of water coming into the tank. Mine comes within an inch of the top and it doesn't need that much water.
Put a half-gallon plastic milk jug, filled with water into the corner of your tank. The float can be adjusted by bending, or shortening the chain, depending on the kind you have. (06/07/2004)
If your tank has a ball float, simply bend the rod so that the ball is lower in the tank. Having someone hold the lever down so the tank doesn't fill up as you do this helps. The water raises the ball only as far as the rod can lift, which shuts off the water. If the water continues to rise to that same level after you have bent the bar down, you need to replace the valve (not as hard as it sounds, just a little uncomfortable working behind/under the toilet). If it is a newer valve, then you need to screw the float down on the fill valve. Or you can go to a local hardware store and ask someone to show you how to do it. (06/08/2004)