24 Pa. Stat. § 7-740
The board of school directors in every district shall, with every building used for school purposes, provide and maintain in a proper manner, a suitable number of water-closets or out-houses, not less than two for each building, where both sexes are in attendance. Such water-closets or out-houses shall be suitably constructed for, and used separately by, the sexes. When any water-closets or out-houses are outside and detached from the school building, the entrances thereto shall be properly screened, and they shall, unless constructed at a remote distance from each other, have separate means of access thereto, and, if possible, for not less than twenty-five (25) feet from such water-closets or out-houses, such means of access or walks leading thereto shall be separated by a closed partition, wall, or fence, not less than seven (7) feet high.
The board of school directors shall keep all water-closets or out-houses, used in connection with any school building, in a clean and sanitary condition, and shall, not less than ten (10) days prior to the opening of any term of school, and oftener if necessary, have them properly cleaned and disinfected by the use of fresh-dry-slacked lime, or other proper disinfecting materials.
24 P.S. § 7-740