SECTION 15410-PLUMBING PIPING

Establish invert elevations, slopes for drainage to 1/4 inch per foot for pipe 3 inches and smaller, 1/8 inch per foot for larger pipes. Maintain gradients. Slope water piping minimum 0.25 percent and arrange to drain at low points. DISINFECTION OF DOMESTIC WATER PIPING SYSTEM. Prior to starting work, verify system is complete, flushed and clean. ................
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