A toilet that keeps overflowing usually has a clog that was never fully cleared, a blocked plumbing vent, or a problem farther down in the main drain line. It can also happen when the wrong items keep going down and getting stuck in the same spot.
The Clog Is Still There
A plunger can push a small hole through a clog without removing it. The toilet works for a few days, then the leftover material catches more paper and blocks again. If you are plunging the same toilet every week or two, this is a likely reason.
Items That Do Not Break Down
Toilet paper is made to fall apart in water. Wipes, paper towels, cotton swabs, and similar products are not, even when the package says flushable. Small toys and other objects can also lodge inside the toilet and trap paper behind them.
A Blocked Vent
Drain lines need air to flow well. Vent pipes, usually on the roof, let that air in. If a vent is blocked by leaves or debris, the toilet may flush weakly, gurgle, or back up. Roof vents are best checked by a professional rather than climbing up yourself.
A Problem in the Main Line
If the toilet backs up when other fixtures drain, or the tub fills when you flush, the clog is probably in the main line, not the toilet. In a two-family house, the other unit may notice slow drains too.
To stop an overflow, close the valve behind the toilet and do not flush again. Wear gloves to clean up, then wash and disinfect the floor. Keep a flange plunger nearby, but stop if water rises toward the rim.
When it keeps happening, having a plumber look at the toilet and the line can find the real cause. Call JPR Plumbing at (833) 603-1840. If other drains are slow too, checking the whole bathroom is worth it.