(a) A spa outlet shall be designed so that the pumping system complies with one of the following: - (i) Two (2) outlets of equal pipe diameter size designed so that:
- (A) Neither one of the two outlets be cut out of the suction line by a valve; or
- (B) By other means which would prevent entrapment of the bather on the suction orifices.
- (ii) One antivortex drain:
- (A) The antivortex drain shall not present a tripping or stubbing hazard to the feet; and
- (B) The diameter of the antivortex plate shall be at least six (6) inches (15cm).
- (iii) An open area of one-hundred forty-four (144) square inches (928 cm²) or larger grate.
(b) All outlet grates, antivortex plates and inlet fittings shall have tamper-proof screws; and - (i) Grates, vortex plates and inlet fittings shall be in place whenever the spa is in use.
010-4 Wyo. Code R. § 4-18