010-3 Wyo. Code R. §§ 3-7 - Piping; Design, Material, Color Coding

(a) Pool re-circulation piping shall be sized to carry the following maximum design loads:

(i) Discharge piping (except 10 ft./sec. copper and asbestos cement pipe) (3.05m/sec.)

(ii) Discharge piping (copper) 8 ft./sec (2.44m/sec.)

(iii) Suction velocity 6 ft./sec.

(1.83m/sec.)

(iv) Discharge and suction 6 ft./sec.

(asbestos cement) (1.83m/sec.)

(b) All pool re-circulation piping shall be rated and capable of withstanding four (4) times the maximum operating pressure at maximum water temperatures.

(c) Plastic pool re-circulation piping shall comply with the National Sanitation Foundation Standard #14 for Plastic Piping System Components and Related Materials.

(d) Metallic piping, except stainless steel used in pool re-circulation systems shall have a corrosion resistant internal lining.

(e) Metal or chlorinated polyvinyl chloride pipe (CPVC) shall be used eighteen (18) inches (49cm) upstream and downstream of heating equipment.

(f) The piping system shall have direction of flow arrows indicated on the pipes.

(g) Public pools shall have a flow diagram of the pool's piping system with operation instructions.

(i) The flow diagram and instructions shall be available on the premises at all times.

(h) A piping system for a general use pool shall be color coded as specified in the following chart:

Pool water	Blue
Fill or makeup water, untreated water	Red
Treated, filtered water	White
Back wash water	Black

Notes

010-3 Wyo. Code R. §§ 3-7