Sorry to hear about your problem. When the toilet tank does not refill, you need to verify the following:. I was watching a scary TV show about ghost when this happened. A toilet that comes on by itself wastes water and results in higher utility bills. Most of the time this random occurrence is a result of poor or no venting of the fixture. Turn off supply water to toilet; the shut off valve should be located below the tank, near the wall or floor.Disconnect the supply line from the toilet and put end into a bucket and turn water back on. In the toilet's resting state, most of the water does not rise from the bottom of the bowl through the siphon. Why does my toilet flush by itself sometimes and then soap bubbles come up? sometimes those plastic pieces get in the way and give the appearence that the toilet is hitting the flange. First off, you have the bowl, where the water … The most common source of the water bill jump is a running toilet. Most toilet backups aren't 100% blocked, so there's a good chance yours will drain slowly at first. Basics of Toilet Anatomy. When the toilet is your problem, then you have a good chance of fixing the problem yourself and saving tons of money. Welcome to JustAnswer. Hello. Why Does My Toilet Randomly Empty Itself Of Water Without Being Flushed? Vents allow for air flow to the toilet sewage system. That's why you need to know how to stop a running toilet! LOL, it scared me a little. Many homeowners don't appreciate how much water a toilet uses; the toilet valve is essentially a garden hose going at full blast, and it's not unusual for a single running toilet to waste hundreds of dollars of water. Without the vent, air pockets form in the waste branches and can cause what is called back-siphonage. If your toilet is flushing twice, it is most likely due to the fact that it is staying open too long and flushing too much water. If your toilet is flushing slowly and incompletely, then there’s something wrong with either the toilet itself or the drain lines. I live in a condo with many units. If you do not have an adjustable flapper, your toilet … Read on to learn why your toilet randomly runs and what to do about it. However, when water is rapidly added to the toilet via either the flushing mechanism or someone pouring water into the bowl, the siphon tube fills up completely; this in turn creates a pressure differential. Before we start talking about phantom flushing (spoiler alert: it’s not ghosts), let’s go over some of the basics of toilet anatomy. Author: packy (MA) you weren't using one of those wax rings with a plastic insert were you? Re: Toilet bowl drains itself. Step 1 – The Food Coloring Test. Keep an eye on the water level and, as it drops, continue to add more hot water to keep it full. I wasn't doing anything, not washing cloths,dishes or my hands. 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