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General Resources:
AdvanTex® Basics
NC Subsurface System Approval
AdvanTex® National Performance Summary (through 9/09)
AdvanTex® Total Nitrogen Reduction Survey
Factors to Consider About AdvanTex

Subsurface System Designs:
Up to 500 GPD
501 - 1000 GPD
1001 - 1500 GPD
1501 - 2000 GPD
2001 - 3000 GPD

White Papers:
Performance of Textile Filters
Utility Use of STEP Systems