Plumbing Drawing Symbols Guide & Editor

Plumbing drawing symbols represent physical fixtures (toilets, sinks), piping fittings (elbows, tees, couplings), valves (shutoff, ball, check, relief), and flow directions in schematic diagrams and floor plans.

Cold water is represented by a solid line with single periodic dots or colored blue, while hot water is designated with a solid line featuring pairs of dots or colored red. On single-line schematics, arrows indicate flow direction.

A plumbing cleanout (CO) is represented by a circle with an inner 'X' or a rectangular extension on the pipe run tagged with 'CO', signifying an accessible threaded plug for clearing drain blockages.

A straight tee has perpendicular 90-degree branch connections for pressurized water supply lines, whereas a sanitary tee symbol features a curved directional sweep on the branch inlet to direct gravity wastewater downward.

A P-trap is drawn as a distinct U-shaped dip in the drain pipe immediately below a fixture outlet before transitioning horizontally into the wall trap arm.

Yes. Symbols placed on the interactive canvas can be scaled, rotated in 45-degree increments, and snapped to pipe connection nodes.