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Comparing Pipe Circumference to Diameter

Circumference   Diameter
 Approximate measurements in inches  
 4  = 1
 7  = 2
 10  =  3
 13  =  4
 16  =  5
19 = 6
22 = 7
25 = 8
28 = 9
32 = 10
47 = 15
63 = 20
Degrees of Water Hardness
 GPGPPM
Slightly Hard 1.0-3.5 17.1-60
Moderately Hard 3.5-7.0 60-120
Hard 7.0-10.5 120-180
Very Hard >10.5  >180
GPG: Grains Per Gallon
PPM: Parts Per Million

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Our philosophy is to foster a strong association between how clearly clean water will have a healthy biological influence on our bodies and preventative repairs and maintenance to our homes and businesses.
Direct Contact:
Cell: 412-848-5058
Email: Pierre@Waslix.com
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