Toilet Leaking From Tank Onto Floor Only At Night

A puddle of water under the toilet tank usually isn t a cause for alarm but it can be serious.

Toilet leaking from tank onto floor only at night. In most cases it s coming from the rubber washers under the bolts that hold the tank to the bowl. If you plan on replacing the tank components yourself check out our step by step guide on how to replace the fill valve. Frequently a toilet leaks simply because the wax ring has lost its seal. Next remove your toilet tank lid and examine your flapper.

The toilet tank bowl kit instructions said that you were supposed to use the bolt one washer and then one rubber gasket inside the tank then on the bowl side another gasket washer and nut. Mark the water closet bolt positions on the floor with masking tape. Install the new bolts gaskets washers and nuts. By far the most common reason for a broken seal is a toilet that rocks when you sit on it.

If the rubber is no longer soft and pliable you can buy an inexpensive replacement at the hardware store. To fix a toilet that has the same problem as above. Turn off the water supply at the shutoff valve located beneath the tank near the floor. Damaged wax seal on bottom of the toilet.

Shut off the water at the valve and drain the water from the toilet tank as indicated above. Use a plunger to force out any water that remains in the bowl. The best way to determine a leak due to a faulty valve is to pour some food coloring into your toilet tank to see if the water in the bowl turns the same color. Flush toilet and sponge out water from tank.

Remove water line from back of toilet. Alternately fill a five gallon bucket with water then pour a steady stream down the bowl from between 12 and 18 inches above the opening. Remove the 2 or 3 bolts holding toilet tank to base. A ball cock is the term used to describe the water supply valve and float arm inside the toilet tank.

A small paper cup will help you remove any water left in the bowl. Remove the tank lid flush the toilet and hold down the handle to drain as much water as possible from the tank. Dispose of bolts and bad seals. Use a sponge to get up the remaining water in the tank.

Next disconnect the water supply tube by loosening the compression nut on the shutoff valve step 1. Here is a picture of the actual leaking bolt from the back bottom of the toilet. This will also force the water out. Other than to protect the porcelain i didn t see the point of having that extra gasket on the bowl side the idea is to avoid having leaks.