Diagram Floor Drain

40 plastic and steel pipe.

Diagram floor drain.

Suitable for no hub or service weight cast iron sch. The center of the lav s drain is located 18 approximately above the finished floor. When you look at an installed floor drain all that you typically see is the grill on top. The rest of the drain is always buried in the basement.

The bathroom sink s water lines are roughed in 3 inches above the drain. Push on p gasket connection astm c 564 with pipe stop. Floor and area drains floor drain selection factors pipe connection no hub standard butt connection using no hub or neoprene coupling suitable for cast iron plastic and most other piping applications. Floor drains are primarily used for inside locations where the flow rate into the drain can be anticipated.

The photo at right shows a floor drain as viewed from the side. The purpose of this drain trap is to hold standing water which seals the drain system and prevents sewer gases from. Water runs down the sink drain into a p trap so called because it s shaped like the letter which fills up with water to prevent sewer gases and odors from getting into the house through the pipe. Floor drains are no exception.

Sufficient top size and grate free area to pass the anticipated flow are required. The shaded portion shows the trap where water will always sit which prevents sewer gas from coming in. Also notice the drain is centered right in the middle of this 30 inch vanity. Immediately beneath a sink bathtub or other plumbing fixture the fixture drain opening leads to a curved segment of pipe known as the p trap which is normally a 1 1 4 to 2 inch diameter segment of pipe with a sharp curved bend in it shaped like the letter p.