It can also be expensive, with leaky toilets being able to leak around 200 gallons of water a day. You want to fix a leaky toilet as quickly as possible before you get a massive utility bill. Kohler toilets “run” when unnecessary water is filling the tank and “leak” when water is leaving the tank and filling the bowl of the toilet. Turn it slightly to move the position of the float. 3. Check the water feed pressure. The overflow pipe could be leaking because the pressure of the water coming into the tank is too high. Use the isolation valve (see steps 1 and 2 above) to reduce the flow of water. 4. Replace the washer in the float valve. Step Three: Tighten/Replace Connections. After you replace the washers and apply sealant, tighten the connections using your hands or a plumber’s wrench. Don’t tighten them so much that you strip them. If the leak still occurs at the connections, you may need new fittings. To resolve a leak at the anode rod: Turn off your water heater and make sure the water in the tank has had time to cool. Open the hot side of the faucet closest to the tank. Lift the pressure relief valve to relieve the pressure in the heater. Remove the anode rod with the appropriate socket. To fix a leaky toilet seal, turn off the water supply to your toilet by turning the valve clockwise. Remove the lid of the toilet tank, then flush the toilet and hold down the handle until as much water drains out as possible. Use a cup to remove any remaining water from the bowl and tank and soak up the last bit of moisture with a towel. Replacing the entire hot water tank drain valve is usually the most reliable fix for a leak. However, you can try and tighten the valve slightly with a wrench to see if the leak stops. Be careful not to overtighten the valve, or the leak could become worse or the valve might break off. Always use the plumber’s tape (thread seal tape) on the Begin by draining the tank and then removing any old sealant with a putty knife. Once the area is clean, apply a new layer of sealant and allow it to dry for 24 hours. After refilling the tank, mark the waterline and wait a couple of hours to see if any water leaks from the tank. The right way to do this is to apply the silicone sealant on the leaking area using a caulk gun (link to check the price on Amazon). 6. Smooth the Sealant. Afterward, use a caulk tool, flat plastic, or your fingers to smoothen the applied sealant evenly from one end to the other. Next, remove the tape. UEpKi.