Due to sizing concerns for septic installation using Infiltrator Systems the following standards are to be used concerning this product.  These standards are subject to change by Environmental Health.

Type:  High capacity (approx. 34" x 16")

Perc rate reduction rates compared to conventional 3' rock bed systems.

            90 - 120 mpi : 1 to 1

            60 - 90 mpi : 12.5%

            Below 60 mpi : 25%

This policy will provide some uniformity for your bid process.

Thanks,