Fitting that joins the assorted pipes in a drain, waste, and vent system, designed to allow solid material to pass through without clogging.
Sanitary sewer
House drain that carries waste away from the house to a septic system or a municipal sewer system.
Sap
All the fluids in a tree.
Saponification
The process in which a fatty acid is neutralized with an alkali or base to form a soap.
Sapwood
Lighter colored wood that is found in the outer part of a tree, next to the bark. It contains living, dead and dying cells and lacks resistance to decay.
Sash
Frame surrounding a door or window to block adverse weather. It may be made of wood, metal, or other material. The frame may be fixed or moveable.
Sash balance
Counterbalance for the weight of the window sash, which is usually accomplished by the use of sash weights, making it easier to open and close or to remain in a certain position.
Sash bar
Also referred to as muntins, these bars divide window openings.
Sash block
Masonry block that holds a window or doorframe by use of a 3Ú4 inch groove.
