When your public restroom becomes a flood of stink-water, you need to fix the problem quickly. Commercial plumbing repair can help. Here are the common causes of flooded public bathrooms and how the plumber will fix each.
Loose O-Ring Gaskets
If you see a lot of toilet water flowing from the bases of the toilets, your problem is more than likely loose o-ring gaskets. If you were to unscrew the bolts that hold the toilet to the floor and pull the toilet up and off, you would see a rubber ring underneath. This o-shaped ring is the o-ring gasket and it is responsible for forming a tight seal between the base of the toilet and the top of the sewer pipe. When the gasket is loose, it gets wiggled out of place. Then every flush causes the toilet water to flow out from the base of the toilet rather than down into the sewer pipe.
The plumber can fix this problem by turning the water to the toilet off, then removing the toilet. He she replaces the o-ring gasket, and then uses a special plumber's sealant to secure the o-ring in place. Finally, the toilet is replaced over the o-ring, the bolts into the floor are screwed back in, and the base of the toilet is caulked to prevent any minor leaks (which should not happen anyway when the toiliet's new o-ring is installed properly).
Flushed Feminine Hygiene Products
Tampons and pads should never be flushed down the toilet. Still, you will have guests/visitors who frequently flush these items rather than dispose of them in the available receptacles. Flushing any of these feminine hygiene items will cause major blockages in the toilet's trap (the u-shaped area in the base of the toilet). Pads cannot dissolve like toilet paper, so they bunch up in the trap and jam up the toilet. Tampons can get stuck too because they don't dissolve either.
A thorough plunging is in order if there is a major blockage. If the blockage cannot be extracted, it is probably a maxi pad that is so doubled up on itself that nothing can get it out of the trap. If that happens, you will have a lot of backed up toilet water (and other unpleasantness) spilling out onto the restroom floor. It is often easiest just to replace the toilet, as extraction of the hygiene products is costly and time-consuming.