© Presby Environmental, Inc., Design & Installation Manual, July 2020 Edition
2
NEW FOR 2020
IMPORTANT CHANGES TO THE USE OF
ENVIROFIN IN NEW HAMPSHIRE
Presby Environmental Inc. has made a number of critical changes to the way in which the EnviroFin system is
designed and installed in New Hampshire. The changes are effective July 15, 2020 and will remain in effect until
further notice.
ALL OF THESE CHANGES ARE INCORPORATED INTO THIS MANUAL
PLEASE READ, UNDERSTAND AND INCORPORATE THESE CHANGES
BEFORE DESIGNING AND/OR INSTALLING AN ENVIROFIN SYSTEM
I.
Number of Units Required:
The minimum Enviro-Fin (EF) unit requirement has increased from 1 unit per 225 gallons per day
(gpd) to 2 units per bedroom, or 1 unit per 75 gpd.
If an Aquaworx Remediator is installed in the treatment train prior to release of effluent into the EF
system, the minimum EF unit requirement is 1 unit per 150 gpd or 1 unit per bedroom. Minimum
system sand basal area requirements are not impacted by this change in specifications.
One-bedroom systems are now permitted for use with the EnviroFin system.
II.
System Expansions:
Env-Wq 1000 rules do not allow for expansion of a system in the same location from which it has
been removed. System expansions require full removal and replacement of the existing system.
However, if an EF system is being expanded as described in this Manual, previously installed EF
components can be removed and inspected, and if not damaged can cleaned and reinstalled as part
of the new EF system.
The information in this Manual is subject to change without notice. We recommend that you check your state’s
page on our website on a regular basis for updated information. Your suggestions and comments are welcome.
Please contact us at:
Presby Environmental, Inc.
143 Airport Road
Whitefield, NH 03598
Phone: 1-800-473-5298 Fax: (603) 837-9864
Website: www.presbyenvironmental.com
The products and methods depicted in this Manual are protected by one or more patents.
EnviroFin
®
is a registered trademark of Presby Environmental Inc.
IMPORTANT NOTICE: This Manual is intended ONLY for use in designing and installing Presby Environmental’s
EnviroFin
®
Wastewater Treatment Systems. The processes and design criteria contained herein are based solely on
our experience with and testing of
EnviroFin
®
. Substitution of any product is prohibited.
© Presby Environmental, Inc. July 2020 All Rights Reserved.