Bad Floor Drain P Trap And Backup

Sewer gas sulphur odor leak discovery cause repairs where a basement or crawl space floor drain or drain trap is the problem.

Bad floor drain p trap and backup.

Floor drains are built with a trap that is designed to be filled with water in order to block sewer methane gases from venting upward. Whether the drain has a pitch or a p trap this trap can dry out allowing sewer odors to travel back up the piping into the air we breathe and smell. Use a wet dry shop vac only. As water goes down a drain air is needed to equalize the pressure in the drain line.

This is the purpose of a venting system. But larger grating openings require more maintenance to clean debris from the trap or the drain sump. How to diagnose basement or crawl space sewer odors due to a floor drain diagnosing repairing cast iron drain connection leak problems diagnosing sewer gas odors traced to plumbing drain deterioration questions. Put the vacuum hose in the center hole where the water flows down the drain into the p trap.

This impedes sewer gases from infiltrating your basement. The drain in the toilet bowl is basically a p trap. A sump full of debris will lead to a floor drain backup. Where a floor drain is located.

This will re prime the. Most of the time the sewer smell is caused because the water in the p trap has dried up or evaporated. Take a gallon of tap water and dump it down the floor drain. Start sucking the dirt out from the trap using your shop vacuum.

A typical residential basement has at least one floor drain usually located near water fixtures such as a hot water heater or clothes washer. If the drain lines in your home have poor venting as in figure a for example water rushing down the drains will pull water from nearby p traps.