Floor Drain P Trap Installation

The floor trap is part of the drain assembly of a basement drain.

Floor drain p trap installation. The floor joists are 2 x 10s and the joist cavity is insulated. The water flows vertically down a short initial section of abs pipe below the floor then through a p trap and out to the sewer main via branch drain lines within the house. This trap is a standard three inc. Connecting a trap to a vertical drain with a wye fitting and a 45 degree elbow seems like a good idea.

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. 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. 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.

Problem is the p trap almost touches the bottom of the joist cavity and is likely to freeze being very close to the exterior of the house. Like a p trap an s trap has an inverted. In this video i am replacing a floor trap in a basement. The u shaped pipe under the drain created a water seal but.

This powered drain snake has a long length of flexible metal with teeth on the tip that can help cut through roots clogging drains. Smith manufactures a full line of floor drains and devices that are easy to install and cost effective including variations for heavy duty drains with adjustable strainer heads special purpose drains traffic drains planting area drains trap seal primers devices and more to suit any construction need. 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. Tips on replacing a sagging pipe under the floor when dealing with extensive plumbing problems it s important to consult a professional to ensure proper repairs and safety measures.

Look at how i installed the drain so it has a vertical riser that allows you easy access to the p trap.