Floor Drain No P Trap

The drain pipe dips down in a u that is always filled with water whether flowing or still.

Floor drain no p trap.

When a trap p. Green drain provides an alternative to trap primer installations. The drain trap is an important part of the floor drain. If nothing drains into the floor drain prevent sewer odor by pouring a pitcher of water down the drain every couple of weeks.

The sizes of the trap outlet matter. 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. That capped pipe is flush with the concrete floor now that the slab is in place. No trap outlet can be larger than the fixture drain to which it is connected.

The u shaped pipe under the drain created a water seal but. The reducer allows you to transition from one size to another. No trap that must depend on moving parts to retain its seal can be used. 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.

Don t be flexible with this. Connecting a trap to a vertical drain with a wye fitting and a 45 degree elbow seems like a good idea. The traps used in floor drains are like those used under kitchen and bathroom fixtures. 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.

Look at how i installed the drain so it has a vertical riser that allows you easy access to the p trap. For instance you can t put a 1 1 2 inch p trap on a fixture with an 11 4 inch drain. Fixture traps must be self cleaning by. The water filled trap prevents noxious sewer gases from backing up into the home.

Drain pipe p trap leaking under sink. And the empty trap will allow sewer gas to flow into your home. 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. Drain trap leaking at compression joint.