Renovation of an educational facility in Rexburg, Idaho. Completed plans call for the renovation of a educational facility.

Toilet Room addition. F. Furnish and install complete system of piping, valved as indicated or as necessary to completely control entire apparatus: 1. Pipe drawings are diagrammatic and indicate general location and connections. Piping may have to be offset, lowered, or raised as required or directed at site. This does not relieve this Division from responsibility for proper installation of plumbing systems. 2. Arrange piping to not interfere with removal of other equipment, ducts, or devices, or block access to doors, windows, or access openings: a. Arrange so as to facilitate removal of tube bundles. b. Provide accessible flanges or ground joint unions, as applicable for type of piping specified, at connections to equipment and on bypasses. 1) Make connections of dissimilar metals with di-electric unions. 2) Install valves and unions ahead of traps and strainers. Provide unions on both sides of traps. c. Do not use reducing bushings, bull head tees, close nipples, or running couplings. Street elbows are allowed only on potable water pipe 3/4 inch (19 mm) in diameter and smaller. d. Install piping systems so they may be easily drained e. Install piping to insure noiseless circulation. f. Place valves and specialties to permit easy operation and access. Valves shall be regulated, packed, and glands adjusted at completion of work before final acceptance. 3. Do not install piping in shear walls. 4. Cut piping accurately to measurements established at site. Remove burr and cutting slag from pipes. 5. Work piping into place without springing or forcing. Make piping connections to pumps and other equipment without strain at piping connection. Remove bolts in flanged connections or disconnect piping to demonstrate that piping has been so connected, if requested. 6. Make changes in direction with proper fittings. 7. Expansion of Thermoplastic Pipe: a. Provide for expansion in every 30 feet (9 meters) of straight run. b. Provide 12 inch (300 mm) offset below roof line in each vent line penetrating roof. 8. Expansion of PEX Pipe: Allow for expansion and contraction of PEX pipe as recommended by Pipe Manufacturer.