If you hear strange noises or water constantly running from your toilet tank, it is an annoyance that can be fixed. Use the following steps if water flows continuously out of the tank to the toilet bowl and down the drain:
Step 1: Lift up on float arm. If water stops, you know the problem is the float ball doesn't rise far enough to lower valve plunger in ballcock assembly. One reason could be float ball is rubbing against
side of tank. If this is the case, bend float arm slightly to move ball away from tank side.
Step 2: If ball doesn't touch tank, continue to hold float arm and remove ball from end of arm by turning it counterclockwise. Then shake ball to see if there's water inside it, as weight of water inside could be preventing ball from rising normally. If there is water in ball, shake it out and put ball back on float arm. If ball is damaged or corroded, replace it with new one. If there is no water in ball, put ball back on, and gently bend float rod down to lower the level float ball must reach to shut off flow of fresh water into tank.
Step 3: If the above steps don't solve the problem, check tank ball at flush valve seat. Chemical residue from water can prevent this ball from seating properly, or ball itself may have decayed. Water will seep through flush valve opening into toilet bowl below. Turn off water at toilet shutoff valve, and flush toilet to empty tank. You can now examine tank ball for signs of wear and install new ball if necessary. If problem is chemical residue on lip of flush valve opening, take some wet-dry emery cloth, steel wool, or even a knife and clean away debris.
Step 4: If excess water still flows through toilet, guide or lift wire that raises and lowers tank ball may be out of line or bent. Make sure guide is in place so wire is directly above flush valve opening. Rotate guide until tank ball falls straight down into opening. If lift wire is bent, try to bend it back to correct position, or install new one. Make sure trip lever rod is not rubbing against anything and lift wire is not installed in wrong hole of rod; either situation could cause tank ball to fall at an angle and not block opening as it should.
Step 5: If neither float ball nor tank ball is at fault, then problem must be in ballcock assembly. For complete instructions on how to fix a ballcock assembly, click here.
The tips and guidelines in this article will help you avoid having to put up with annoying noises from your toilet tank.
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