Old Basement Floor Drain Diagram

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Old basement floor drain diagram.

Many basement floor drains tie directly to the home s sewer system but in some communities local building codes require floor drains to run to a sump pit where a pump lifts the water to the exterior surface of the house. The purpose of this drain trap is to hold standing water which seals the drain system and prevents sewer gases from. Basement floor drains don t get a lot of attention until the sewer backs up or the basement smells like an outhouse. 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.

Many new homes also utilize these types of drainage systems. Floor drains are an effective way to remove excess water from a home. This is an expensive repair as it involves breaking up the concrete in the basement floor replacing the drain then pouring new concrete. 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.

Old floor drains work passively their design based on principles of physics. This water gets refreshed whenever more water runs through it. Reuben saltzman structure tech home inspections email. This diagram of a typical dwv system is called a plumbing tree.