A sink drains by way of several components. Kitchen sinks have a strainer fitted into a strainer body thats inserted down through the sink hole and sealed to the sink with a bead of plumbers putty. Most bath sinks dont have a strainer, but they do have a pop-up stopper so the sink can be easily filled with water.

How does a kitchen sink drain work?

Drains work by using simple gravity. When you push down the sink plunger, the drain sucks water through the opening into the appliance drain line. As the water falls straight down the vertical appliance line, it gathers speed and velocity. That speed allows it to move past the p-trap and into your homes drainpipes.

What is the kitchen sink drain called?

Basin Basin: The basin is the part of the sink that holds water from the faucet. It has a drain in the bottom that allows water to escape.

What is in a sink drain?

Most modern sink drains are made of polyvinyl chloride, or PVC, plastic, but metal drain pipes and parts are still available at hardware stores.

What is the standard drain for a kitchen sink?

All kitchen sinks today have the same diameter drain, which is 3 1/2 inches and is larger than a bathroom drain which measures in at 1 1/4 inches. It is the same size as a typical standard shower drain, however. When installing a new drain into the sink, you have no need to shop for certain diameter drains.

Where does kitchen sink drain go?

If you are not connected to a sewer system, the liquid wastes from your home go into a septic tank, where most of the solids settle out. The water then goes into a leach field, pipes buried in the ground that have holes in the bottom. The water seeps out of these holes and into the ground.

Why does my kitchen sink have two drains?

IF they are stacked vertically one on top of the other, then theyre as HJ said IF they are separated horizontally, they may have just put in two traps. If its two traps, you can cap one if you wish. OFten when replacing a sink the height of the connection in the wall is no longer usable if it is to high.

Is it safe to pour boiling water down kitchen sink?

Do NOT pour boiling water down your sink or toilet. While its probably okay to dump boiling water in the sink when your pipes are clear, a clog will trap the water in the pipe. This can melt PVC piping and pipe seals, causing serious damage.

What is standard sink drain hole size?

1.25 inches While a bathroom sinks design and overall size may vary from one model to the next, the drain holes are fairly standard, 1.25 inches being a general standard. Which size drain is needed for that sink is determined by the hole size.

What is the U shaped pipe under the sink called?

p-trap The U-shaped bend in your drain pipe is called the p-trap. This pipe is also referred to as a trap.