Plumbing Fixtures: Need a comment

a 3D isometric diagram illustrating the rough-in plumbing layout for a commercial or institutional restroom specifically one designed to be ADA-compliant (indicated by the grab bars and specialized fixtures). The diagram clearly differentiates between the three main water lines using color-coding.

PLUMBING COLOR-CODING AND FIXTURES

The color-coding follows standard plumbing conventions to distinguish the systems:

* Green Pipes (Drain/Waste/Vent - DWV): These are the pipes for the drainage and waste system. They carry wastewater away from the fixtures and include the larger main horizontal and vertical stacks.

* Fixtures Drained: The main floor drain the sink drains and the toilet waste line all connect to the main green horizontal drain stack.

* Red Pipes (Hot Water): These pipes supply hot potable water to the fixtures.

* Fixtures Supplied: The two sinks (lavatory and utility/service sink) are supplied with hot water.

* Blue Pipes (Cold Water): These pipes supply cold potable water to the fixtures.

* Fixtures Supplied: Both sinks and the toilet (for flushing) are supplied with cold water.

FIXTURES AND ADA COMPLIANCE

The layout includes a dedicated set of fixtures all featuring elements indicative of accessibility standards:

* Lavatory Sink (Top Center): A standard hand-washing sink likely wall-mounted with both hot and cold water supplies and a drain. A grab bar is shown adjacent to it.

* Water Closet (Toilet - Center Right): A wall-mounted or floor-mounted toilet (appears wall-mounted for easier cleaning) with cold water supply. It is flanked by horizontal and vertical grab bars for accessibility.

* Service/Utility Sink (Lower Left): A larger deeper sink often used in commercial settings for janitorial or utility purposes. It has separate hot and cold water taps and a dedicated drain.

* Floor Drain (Center): A drain flush with the floor is included to manage accidental spills or water from cleaning.

* Fold-Down Seat/Bench (Center): A wall-mounted fold-down bench is shown often found in accessible shower or changing areas further suggesting an ADA-compliant or universal design bathroom.

SYSTEM INTEGRATION

The diagram shows how the entire system integrates:

* The water supply lines (red and blue) are run from the main vertical risers (far right) horizontally across the room to feed the individual fixtures.

* The drainage lines (green) run from the traps of the fixtures down to the main horizontal drain line which carries all waste toward a larger stack or sewer connection (bottom left).

This illustration effectively maps the entire mechanical plumbing system for a multi-purpose accessible restroom.