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Plumbing
As per UPC. ,2012Ediition
Table 704.1
THE SLOP RTEQUIERD FOR HORIZONTAL DRAINAGE PIPE IS AS FOLLOW:
1 - 21/2'' PIPE & LESS
1/4 SLOP INCH/FOOT
2 - 3'' : 6 '' '' PIPE 1/8 SLOP INCH/FOOT
3 - 8'' & LARGER PIPE & LESS 1/16 SLOP INCH/FOOT
In practicality at site we have coordination with other systems for the palcing of pipe runs and as per ground reality it is normally maintained 1:100.
only 1% to 50mm, 75mm, 100mm, 150mm & 200mm because if your slope is above 1% you will be conflict to other trades installation.
50 mm = 1:50 slope ratio
75mm = 1:50 slope ratio
100mm = 1:60 slope ratio
150mm = 1:100 slope ratio
200mm = 1:120 slope ratio
slopes area as follows
pipe size slope
50mm 1:40
75mm 1:50
100mm 1:60
150mm 1:90
200mm 1:120