Floor Drain P Trap

Most floor drains are designed with a feature called a p trap because it is shaped roughly like the letter p turned on its side.

Floor drain p trap.

That capped pipe is flush with the concrete floor now that the slab is in place. As water drains down the steep slope at the wye it can create a siphon effect such that water will be sucked out of the trap. This feature is simply an elbow in the drain pipe that fills with water. In some instances however the drain pipe rises up from under the sink and it used to be the practice to connect the fixture to the drain with an s trap.

The u shaped pipe under the drain created a water seal but. It connects on one end to the drain such as a floor drain or the drain of a restroom fixture and on the other end to the line going to the sewer. If nothing drains into the floor drain prevent sewer odor by pouring a pitcher of water down the drain every couple of weeks. Shaped like the round end of a p or a u the p trap is the place in your drains that stops sewer gas odors from shooting back up your drains into your place of business.

In these cases the application needs very little water to reseal the trap. This powered drain snake has a long length of flexible metal with teeth on the tip that can help cut through roots clogging drains. Second good floor drains are typically designed to keep unpleasant odors from entering the restroom through the drain. If your floor drain connects to the sewer system and you smell sewer gasses the trap beneath the drain is dry or the plug for the cleanout is missing.

Connecting a trap to a vertical drain with a wye fitting and a 45 degree elbow seems like a good idea. This can be a large warehouse. Look at how i installed the drain so it has a vertical riser that allows you easy access to the p trap. Like a p trap an s trap has an inverted.

Because the trap is usually quite a bit larger than a traditional trap it can handle a much. Use a deep trap when you install a floor drain in a remote location. In addition i made sure the drain line leaving the floor drain on the right was a straight shot into the p trap for the same reason. The floor drains in older homes were piped in almost all cases with a simple p trap just like you might find under your bathroom sink.

And the empty trap will allow sewer gas to flow into your home.