Water Supply System. An owner shall ensure that a water supply system at a public pool or spa is in conformance with: COMAR 26.04.01, 26.04.03, and 26.04.04; COMAR 09.20.01; and Local plumbing code requirements. Sewage Disposal System. An owner shall ensure that a sewage disposal system at a public pool or spa is in conformance with: COMAR 26.04.02 and 26.04.03; COMAR 09.20.01; and Local plumbing code requirements. Drinking Fountains. An owner shall ensure that a recreational pool, semipublic pool, or public spa enclosure has at least one drinking fountain for every 5,000 square feet of water surface area. Hose Bibbs. An owner of a recreational pool, semipublic pool, or public spa shall ensure that the following locations have an accessible hose bibb equipped with an atmospheric vacuum breaker: On the deck at 150 feet intervals; In an equipment room; and In both a men's and a women's bathhouse. Fill Spouts. If a fill spout is installed at a public pool or spa, the owner shall ensure that the fill spout is: Installed within 10 inches of a ladder or handrail or in front of a lifeguard stand whose supports are immediately adjacent to the pool or spa rim, so that the fill spout does not present a tripping hazard or a puncture hazard; Not installed over a seat bench; Braced or constructed so the fill spout does not flex downward; and Provided with a flexible cover on the tip of the fill spout if the spout presents a potential for injury to an individual using a pool or spa. Backflow Prevention. An owner of a public pool or spa shall ensure that: A pool or spa facility has backflow protection for: A potable water supply, in conformance with COMAR 09.20.01; and Wastewater, in conformance with COMAR 09.20.01; and An air gap that is two times the diameter of the fill spout separates the fill spout from the flood rim level of the pool or spa. Source of Water. An owner of a public pool or spa shall ensure that: When a public pool or spa is filled with water from a nonpotable source, such as a water tank holding nonpotable water or surface water, the: Water is filtered, treated, and disinfected after addition to the pool or spa to meet the requirements of Regulation .44 of this chapter; and Pool or spa is not used until a bacteriological sample taken by the Secretary indicates that there are no coliform organisms in the water; and Public pool or spa make-up water: Is from a potable source; and Having an iron level over 0.3 ppm is treated to lower the iron level to 0.3 ppm or less before the make-up water is added to a pool or a spa.