12 Va. Admin. Code § 5-460-310
A placard shall be prominently displayed showing the following data: (i) size of the swimming pool in feet and volume in gallons; (ii) capacity of the filters in square feet and gallons per minute; (iii) capacity of the pumps in gallons per minute at the appropriate head in feet; (iv) head loss at which the filters should be backwashed; and (v) complete instructions for operating the recirculation and disinfection equipment.
§ 35.1-13 of the Code of Virginia.
Derived from VR355-35-05 § 31, eff. March 1, 1962.