A toilet that keeps overflowing usually has a clog that never fully cleared, a blocked vent pipe, or a problem in the main drain line. It can also happen when items that should not be flushed keep getting stuck in the same spot.
A Partial Clog That Never Cleared
A plunger can open a small path through a clog without removing it. The toilet works for a while, then overflows again when the leftover material catches more waste. If you have had to plunge the same toilet several times in a few weeks, this may be the reason.
Things That Should Not Be Flushed
Wipes, paper towels, cotton swabs, and other products do not break down like toilet paper. Even wipes labeled flushable can catch inside the toilet or the pipe below. Small toys and other objects can also get stuck and trap paper behind them.
A Blocked Vent Pipe
Plumbing vents let air into the drain system so water flows smoothly. If a vent on the roof is blocked by debris, leaves, or a nest, the toilet may drain slowly, gurgle, or overflow. Roof vents should be checked by a professional rather than climbing up yourself.
A Main Line Problem
If the toilet overflows when other fixtures run, or if the tub fills when you flush, the clog may be in the main line. This is more common in older Brooklyn buildings with aging drain pipes.
Close the valve behind the toilet to stop the water, and do not flush again. Clean up with gloves. If the problem keeps coming back, it is time to have a plumber look at the toilet and find the real cause.
If your toilet keeps overflowing, JPR Plumbing can help. When the same problem shows up in other bathrooms, checking every toilet and drain in the house can point to a shared clog further down the line. Call (833) 603-1840.