§3120B.17.1 (no title)
The direction of flow for the recirculation equipment shall be labeled clearly with directional symbols such as arrows on all piping in the equipment area.
§3120B.17.2 (no title)
Where the recirculation equipment for more than one pool is located on site, the equipment shall be marked as to which pool the system serves.
§3120B.17.3 (no title)
Valves and plumbing lines shall be labeled clearly with the source or destination descriptions.
The pool operator shall post at the entrance area of a public pool a sign in letters at least 1 inch (25 mm) high that clearly states that persons with diarrhea and persons who have had diarrhea within the prior 14 days shall not enter the pool water.
Where automatic gaseous chlorine chemical feeders are used, a sign shall be posted at the pool area entrance which shows in a diagrammatic form an emergency evacuation procedure. Designated emergency exits shall be marked “EXIT.”
Where automatic gaseous chlorine chemical feeders are used, a warning sign with the appropriate hazard identification symbol shall be posted on the exterior side of the door entering the chemical feeder room or area. The sign shall state, “DANGER: GASEOUS OXIDIZER – (specific chemical name),” or as otherwise required by the California Fire Code.
Where automatic gaseous chemical feeders are used, a sign shall be posted at the switch to the light and ventilation system for the gaseous chemical feeder room stating, “TURN ON BEFORE ENTERING,” or as otherwise required by the California Fire Code or the California Electrical Code.
Where pools were constructed for which lighting was not required, a sign shall be posted at each pool entrance on the outside of the gate(s) stating, “NO USE OF POOL ALLOWED AFTER DARK.”
A sign shall be posted on the exterior side of gates and doors leading into the pool enclosure area stating, “KEEP GATE CLOSED” or “KEEP DOOR CLOSED.”
Signs shall be posted in conspicuous places and shall state, “NO DIVING” at pools with a maximum water depth of 6 feet or less.
Where no lifeguard service is provided, a sign shall be posted stating, “NO LIFEGUARD ON DUTY.” The sign also shall state in letters at least 1 inch (25 mm) high, “Children should not use pool without adult supervision.” Exception: “No lifeguard sign” requirement does not apply to spray grounds that have no standing water. 
An illustrated diagram with text at least 1/4 inch (6 mm) high of artificial respiration and cardiopulmonary resuscitation procedures shall be posted.