DIY Dishwasher Projects

Commonly used on a Dishwasher Discharge at the sink counter top. In this common usage it is to stop drain water from flowing down hill from the sink drain into the lower lever that the Dishwasher is in relation to the sink bottom. This Air Gap is a safety device and not just an annoyance. Other more exact definitions exist. This is not a vent nor is it an overflow, it will however discharge water if its connection to the drain is restricted.

A shut off valve. Used for fixtures such as sinks and toilets. 1/4 turn type are ball valve type and generally better. A single outlet port is best. If two supplies are needed it is best to have two separate angle stops, or a double handle / doublestop.

A device designed to allow a fluid to flow in one direction only.

Fats, Oils, Grease. In drain pipes these float to the top of the pipe collect till falling and causing a blockage. Enzymes can digest them and prevent problems if enzymes are used correctly.

The J bend and Trap Arm that are under all sinks/showers/drain fixtures. Sole purpose is to trap sewer gasses from venting up from the drain into the room. The P Trap keeps water in it from its shape having a dip or the P on its side to retain water.