A damaged fill valve can cause both a slow draining toilet and water wastage. Toilets that run after you flush them can make water utility bills soar. If your fill valve is the problem, then you first need to turn off your toilet’s water supply. Take the tank lid off and flush the toilet so all the water drains out.
Why does my toilet bowl empty after flushing?
Most of the time this random occurrence is a result of poor or no venting of the fixture. Vents allow for air flow to the toilet sewage system. Without the vent, air pockets form in the waste branches and can cause what is called back-siphonage.
Why does the water keep draining from my toilet?
Your toilet may randomly empty itself for one of the following reasons. Your sewage system may not be properly vented, causing back-siphonage. The flapper in your toilet may be damaged and is not sealing properly, triggering random flushing. High water pressure can also cause your toilet to run at random times.
Why would a toilet bowl water go down after filling?
If the tank re-fills and water shuts off, it isn’t the flapper. If the tank re-fills and water stops, then it sounds more like the toilet is simply clogged. Did you try a plunger? If that does work and the tank does refill properly, then you’ll need the drain snaked I think.
